C3 Vette Registry - The Best Resource on the Net for C3 Vettes! C3 Vette
Forums -> C3 Engines
Not Logged In! Login or Register!  Users Online: 16 / Help 
Features  Find C3 Parts on ebay in only 2 or 3 clicks!  | Add YOUR C3 to the Registry

Supporting Vendors
VetteBookStore.com
Bair's Corvettes
Mid America Motorworks
Volunteer Vette Products
CorvetteClothing.com

C3 of the Month
None Current
Enter Yours Today!
Online C3 Show
13
C3s are Registered

Vanity Plates
CARLYS
Kid Carly
Featured Links

Buy Now
Chevrolet Corvette Restoration Guide
Chevrolet Corvette Restoration Guide


Corvette Fifty Years (Hardcover)
Corvette Fifty Years (Hardcover)


How To Rebuild Corvette Rolling Chassis 1963-1982
How To Rebuild Corvette Rolling Chassis 1963-1982


The Corvette Factories: Building America's Sports Car (Hardcover)
The Corvette Factories: Building America's Sports Car (Hardcover)



| Hide Signatures and Profile Pics

 New Topic New Topic Post Reply Reply New Poll New Poll Search     Search Page [1]  
12/18/10 1:24pm - Original Message: 'carburetor clearance issues'
RedVetteinprogress
Former Member
- Send Private Message


West Bend, WI - USA

Vette(s):
1985 silver coupe & 1975 red coupe

Joined: 3/18/2010
Posts: 46
Hello! Please help, need info. I installed a 350CI GM crate motor into my 1975 Vette for more zip. The thing has vortech heads which limited which intake manifold to use. I did use a Edelbrock #2116 manifold and it seems a bit high. The company told me it's the lowest one they make for my engine because of the heads. I have been told to use a Holley Avenger #670 carb with a drop-down air cleaner and that set up would give me room to the under side of the hood. Really don't want to get into high rise hood's, etc. Also, who makes drop-down type air cleaners that may work? Can anyone out there offer some advise? MERRY CHRISTMAS !!!!  Darrell
 Reply Reply  Quote Reply w/Quote
 
Support C3VR!
Suport our advertisers
12/18/10 1:59pm - Reply: 'carburetor clearance issues'
lukesvette Lifetime Member
Lifetime Member
- Send Private Message


HOWELL, NJ - USA

Vette(s):
1979, Targa Blue (72 Color), Pace Car rear spoiler, L88 hood, Dark blue factory interior, 525HP 406, HD 700R4, 370 gears,Steeroids, composite rear spring, TT IIs wrapped in T/A Radials.

Joined: 5/18/2004
Posts: 6806
Darrell, I had a K&N filter kit with a drop base. I also went from a 3" to a 2" filter which added even more clearance.

This should work with a 14" filter and lid:




____________________________________
LukesVette Homepage
Veteran of Operation Iraqi Freedom
101st Airborne(AirAssault!)
God Bless America

Support Our Troops


     
 Reply Reply  Quote Reply w/Quote
12/18/10 2:00pm - Reply: 'carburetor clearance issues'
yostusota
Former Member
- Send Private Message


York, PA - USA

Vette(s):
1969 daytona conv. all original 350 350 380 4 sp w/air..and hard top

Joined: 5/18/2010
Posts: 1518
Hey Darrel. .have you put the hood on yet or are you way beyond that now...I would make sure that the carb will bolt right to the intake without an adapter plate..they can add a half inch..not sure if a #670 holley will bolt to that intake without one...
Rich

____________________________________

My first parade at Carlisle 2010
 Reply Reply  Quote Reply w/Quote
12/19/10 10:53am - Reply: 'carburetor clearance issues'
1VET2NV
Former Member
- Send Private Message



Vette(s):
1982 Collector Edition 400 HP ZZ4 and 5 Speed TKO500. 3.54 Rear

Joined: 12/17/2010
Posts: 21
Darell,
 
Check out MassFlow Injections site.  Chris there uses a very low profile intake that he modifies for the injectors.  I believe its a Edlebrock, but he can advise. 
 
Regarding a low air cleaner, check out K&N 14" round with a 4" drop.  I used this on my 82 and it worked great.  Part numbers 601263 for a 3  601264 for a 4"
 Reply Reply  Quote Reply w/Quote
12/20/10 12:55am - Reply: 'carburetor clearance issues'
bcousins
Former Member
- Send Private Message


Jacksonville, FL - USA

Vette(s):
79 L-82 4-speed. Engine stock except long tube headers. Previous owner replaced upholstery and carpet with OEM. I replaced and upgraded steering and suspension.

Joined: 12/15/2009
Posts: 36
A large choice of dropped air cleaners is online at Summit Racing:
 
Scroll through and check the specs on several.  Many give the net height above carb flange.  I am still trying to figure which one will allow me to use the best intake manifold and keep the stock hood. 
 
Does anyone know how much the dropped air cleaners may reduce total air flow because of the shorter filter that is also partly below the carb flange?  Perhaps they don't reduce it at all since the filter is open all the way around, unlike the OEM.
 
  I don't want to defeat the purpose of a high-rise manifoild by restricting flow through the air cleaner.  Thanks.  Happy holidays!


____________________________________
 Reply Reply  Quote Reply w/Quote
12/20/10 7:33am - Reply: 'carburetor clearance issues'
Per4mance Lifetime Member
Lifetime Member
- Send Private Message


Morganville, NJ - USA

Vette(s):
1971 350 270 hp roadster millivanilli red, black interior, white rag top, white hard top, I've had it 18 years and intend on giving it to my son for his 25th birthday(another 18 years from now)

Joined: 1/25/2009
Posts: 92
God hates a coward ! Go for the L 88 hood and if thats not in the budget cut a hole and get the tunnel ram Wink

____________________________________
 Reply Reply  Quote Reply w/Quote
12/20/10 9:25am - Reply: 'carburetor clearance issues'
Jaws79 Lifetime Member
Lifetime Member
- Send Private Message


Sykesville, MD - USA

Vette(s):
1979 Corvette Coupe Corvette Light Blue Midnight Blue interior Mirrored Glass T-tops

Joined: 4/27/2008
Posts: 4211
You tell 'em, Bill!
 
Barry
 
Thumbs Up


____________________________________
"Down on the Boardwalk...

(Click image to see a larger version}
 
Lifetime Member #181
 Reply Reply  Quote Reply w/Quote
12/20/10 10:36am - Reply: 'carburetor clearance issues'
bcousins
Former Member
- Send Private Message


Jacksonville, FL - USA

Vette(s):
79 L-82 4-speed. Engine stock except long tube headers. Previous owner replaced upholstery and carpet with OEM. I replaced and upgraded steering and suspension.

Joined: 12/15/2009
Posts: 36
Well Per4mance, as a retired US Army paratrooper with two tours in Viet Nam and one in Desert Storm I believe I have proven I am not a coward.  Your advice was not funny and not helpful.  If you don't know anything helpful to reply to a post please be courteous enough to refrain.
 
It is not a question of budget, I can buy anything I want, I just want to keep the stock hood.  Anyone else have any friendly and helpful advice?


____________________________________
 Reply Reply  Quote Reply w/Quote
12/20/10 11:16am - Reply: 'carburetor clearance issues'
yostusota
Former Member
- Send Private Message


York, PA - USA

Vette(s):
1969 daytona conv. all original 350 350 380 4 sp w/air..and hard top

Joined: 5/18/2010
Posts: 1518
Hey BC..I have looked at a few of those drop down air filter kits and you ask if they reduce flow..as long as the filter is the same height and diameter as the stock one it will actually flow more..due to the curve design of the drop down.. flow will be boosted even though a small amount..I would look for a K&N filter..I like the old school oiled air filters like that..they cost more but you can reuse them..I didn't see what intake you want to put on your car but sometimes the manufacturer that you bought one or will buy from knows what will fit under there..they have been there done that..also have you changed anything else with the engine..that makes a difference in what intake you get also..I think the first one that comes up is nice..all black wrinkle design..the Pro 141-752 drop is a inch and a half..I searched most of them that I could find and it had the most actual drop..not sure if it fits the Q jet you have but it says it does..not sure also if it has interference with the throttle or EGR valve being it goes down so far..should be albe to fit alot of different intakes with that much drop..does your car have that cowel induction??..that makes things up a  good bit also..
Rich

Ps..
Thanks for your service...
I hope I can help in the future..
yostusota2010-12-20 09:48:43

____________________________________

My first parade at Carlisle 2010
 Reply Reply  Quote Reply w/Quote
12/20/10 12:42pm - Reply: 'carburetor clearance issues'
Per4mance Lifetime Member
Lifetime Member
- Send Private Message


Morganville, NJ - USA

Vette(s):
1971 350 270 hp roadster millivanilli red, black interior, white rag top, white hard top, I've had it 18 years and intend on giving it to my son for his 25th birthday(another 18 years from now)

Joined: 1/25/2009
Posts: 92
Well Darrell, since you don't have a sense of humor about this, I'll tell you how to check your clearances.Put on your set up you have now and see if your hood closes with  whatever air cleaner setup you got and roll up some playdough around the air cleaner and close the hood, lift it up and that should give you the distance of room you have to work with .

____________________________________
 Reply Reply  Quote Reply w/Quote
12/20/10 1:41pm - Reply: 'carburetor clearance issues'
Adams' Apple Lifetime Member
Lifetime Member
Moderator
- Send Private Message


Duncanville, TX - USA

Vette(s):
#1-1974 L-48 4spd Cp Med Red Metallic/Black deluxe int w/AC/tilt/tele./p/w-p/b/ Am-Fm/map light National/Regional/Chapter NCRS "Top Flight" #2-1985 Bright Red/Carmine Cp.L-98/auto Member: NCRS, NCRS Texas, Corvette Legends of Texas

Joined: 11/8/2003
Posts: 19457
NOW yer talkin!!

               


The '73-'77 cars had the highest hoods of any of the models, other than the L88 hoods....if there's a clearance issue with your carb/air cleaner, that thing must be stickin out quite a bit! You haven't said for sure that the hood IS hitting anything, so we're not sure where to go with the info....
Adams' Apple2010-12-20 11:46:39

____________________________________
Joel Adams
C3VR Lifetime Member #56    
My Link


(click for Texas-sized view!)
             NCRS

"Money can't buy happiness -- but somehow it's more comforting to cry in a CORVETTE than in a Kia"
 Reply Reply  Quote Reply w/Quote
12/20/10 9:08pm - Reply: 'carburetor clearance issues'
suncountry Lifetime Member
Lifetime Member
Moderator
- Send Private Message


Moses Lake, WA - USA

Vette(s):
1976 L48 4-spd, Mahogany Metalic exterior, Buckskin interior 350ci/350hp, 3rd owner, fiberglass spring, 255/50-16's Torq-Thrust II

Joined: 4/16/2005
Posts: 2134
I am running a GMPP 350HO vortec heads a RPM manifold with a Berry Grant 650 dbl pumper carb. I had to go with a drop base air filter housing and I think the K&N is 3" tall. Just barely clears the hood.
I also add I have a 1/2" carb spacer so the accelerator pump clears the manifold. I am using a button head screw to hold the ari cleaner on. Here is a picture of the setup
The filter in the one picture came with the assembly with I changed out for the K&N. I also did not use the bow-tie wing nut to hold the filter down. I was like you, didn't want to have to change the hood out.
 
 


____________________________________


Full Size
C3VR Lifetime Member #110 We are all young at heart Glen
 Reply Reply  Quote Reply w/Quote
12/20/10 10:19pm - Reply: 'carburetor clearance issues'
bcousins
Former Member
- Send Private Message


Jacksonville, FL - USA

Vette(s):
79 L-82 4-speed. Engine stock except long tube headers. Previous owner replaced upholstery and carpet with OEM. I replaced and upgraded steering and suspension.

Joined: 12/15/2009
Posts: 36
Glen,
Thanks for the info and pics.  You have a great looking setup and a beautiful C3.  I was told on the phone by a tech at Edelbrock that the RPM would not fit even without an air cleaner.  I didn't believe it so was asking here.  I want to use the RPM with a Holley 670 and AFR 195cc heads.  I know how to measure and check for clearance but was interested in what others have used under the stock hood.  Thanks again, Happy Holidays!


____________________________________
 Reply Reply  Quote Reply w/Quote
12/21/10 6:57am - Reply: 'carburetor clearance issues'
lukesvette Lifetime Member
Lifetime Member
- Send Private Message


HOWELL, NJ - USA

Vette(s):
1979, Targa Blue (72 Color), Pace Car rear spoiler, L88 hood, Dark blue factory interior, 525HP 406, HD 700R4, 370 gears,Steeroids, composite rear spring, TT IIs wrapped in T/A Radials.

Joined: 5/18/2004
Posts: 6806
BC, one additional point from when I was researching my set up - I believe that the Performer RPM and the newer Airgap have the same deck to carb flange height. Something else to consider.

Before I went to an L88 hood, I had an RPM with an Edebrock carb, drop base w/ 2" filter and a K&N airraid lid under my stock 79 hood with a 1/2" to spare!

From a fellow veteran, welcome home.

Paul

____________________________________
LukesVette Homepage
Veteran of Operation Iraqi Freedom
101st Airborne(AirAssault!)
God Bless America

Support Our Troops


     
 Reply Reply  Quote Reply w/Quote
12/21/10 8:57am - Reply: 'carburetor clearance issues'
bcousins
Former Member
- Send Private Message


Jacksonville, FL - USA

Vette(s):
79 L-82 4-speed. Engine stock except long tube headers. Previous owner replaced upholstery and carpet with OEM. I replaced and upgraded steering and suspension.

Joined: 12/15/2009
Posts: 36
Thanks Paul,
You confirmed what I suspected.  Thanks for your service.  Hooah!
 
Bill


____________________________________
 Reply Reply  Quote Reply w/Quote
 New Topic New Topic Post Reply Reply New Poll New Poll Search     Search Page [1]  
 Forums -> C3 Engines
(Moderator: Adam Wartell, Norsky, Adams' Apple)
 

 
Official C3 Vette Registry Community:
Home | Forums | Email | Who's Online | Clubs | Events | Member Stats

Other Official C3 Vette Registry Areas:
Members | Research | Shop | My Account | About C3VR
 

Corvette is a registered trademark of the General Motors Corporation(GM) & Chevrolet Motor Division. Vette Registries, LLC is responsible for all site content (except for member submitted content or where otherwise noted) and does not claim or imply that Chevrolet or GM is responsible for Official C3 Vette Registry content. Vette Registries, LLC is independent from GM and is not affiliated with, sponsored or supported by GM.  Copyright/trademark/sales mark infringements are not intended, or implied and are in fact used to support GM, Chevrolet and Corvette

Official C3 Vette Registry content is Copyright 2001-2017, Vette Registries, LLC. Content may not be reused without written consent. All Rights Reserved. NS

Corvette (Vette) Model Years on this site: 1968 1969 1970 1971 1972 1973 1974 1975 1976 1977 1978 1979 1980 1981 1982 30