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1/1/14 5:04pm - Reply: 'Re: car will not start runs on starting fluid'
HighDesertDave
Former Member
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Carson City, NV - USA

Vette(s):
Numbers matching 1972 350 4 speed, silver pewter body with blue interior

Joined: 12/4/2013
Posts: 239



*Just wanted to add a note to the previous mention of Edelbrock's Q-Jet that is no longer made. Those carbs come with "truck" metering rods in them. Which is ok for a stock low revving small block, but not ok for a high powered high revving small block. They will cause a lean condition at wide open throttle. I almost wiped out a engine with one of these Q-jets. Later found out why. Shocked

Hey my vett came with the edelbrok Re-pop Q-jet. Can you tell me the correct metering rod # and or jet # to bring it up to vett proper specs? It's new (ok, sat for a few years as the PO restored the car) but my accelerator pump does not shoot fuel AT ALL. Must have dried up or the check ball is stuck. So, while I'm it fixing that I'd like to update the metering rods.
Thanks,
Dave





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My Christmas present to ME! Bought Sat 11-30-2013. 72, 350 4 spd, Silver with blue interior...Can't you just hear Pablo Cruz playing in the background?

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1/1/14 6:47pm - Reply: 'Re: car will not start runs on starting fluid'
Sarge81 Lifetime Member
Lifetime Member
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WEST SENECA, NY - USA

Vette(s):
1981 Blue Ice Met. w/pearl ghost flames TKO500 5speed. LS1 Swap 3.45 Dana 44.

Joined: 12/3/2001
Posts: 2376
HighDesertDave said:
*Just wanted to add a note to the previous mention of Edelbrock's Q-Jet that is no longer made. Those carbs come with "truck" metering rods in them. Which is ok for a stock low revving small block, but not ok for a high powered high revving small block. They will cause a lean condition at wide open throttle. I almost wiped out a engine with one of these Q-jets. Later found out why. Shocked

Hey my vett came with the edelbrok Re-pop Q-jet. Can you tell me the correct metering rod # and or jet # to bring it up to vett proper specs? It's new (ok, sat for a few years as the PO restored the car) but my accelerator pump does not shoot fuel AT ALL. Must have dried up or the check ball is stuck. So, while I'm it fixing that I'd like to update the metering rods.
Thanks,
Dave

There are various rod/jet combos amongst the different years and engine/transmission/hp combinations and I don't know exactly what your vette has. So here is a full detailed document on tuning, part numbers and sizes according to specific vehicles. This was written By Lars Grimsrud. The absolute genius of Q-Jets and tuning. 

This is a Microsoft "Word" document.

Keep in mind it's the secondary metering rods that affect wide open throttle lean or rich mixture. Not the primary metering rods. Plus some of these parts may not be available anymore. If you figure out what rods/jets you need let me know. I may have them in my collection of carb parts






|UPDATED|1/1/2014 3:47:34 PM (AZT)|/UPDATED|


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GEN III 5.7L "LS6" Engine swap
TKO500 5 spd.
3.54 Dana 44
'69 "N11" Sidepipes
Borgeson Steering Box
Born 8/1981
Sequence #3975




Click here to see more pics of my Vette on CarDomain.


Lifetime Member #26
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1/2/14 2:29am - Reply: 'Re: car will not start runs on starting fluid'
daveo76
Standard Member
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Vancouver, WA - USA

Vette(s):
1976 Silver/Firethorn. L48, 4spd. Original 2 bolt, vortec heads, 9.4:1 CR, Speed Pro Cam: 224/224@0.050, 112 LSA, Eagle Steel Crank.

Joined: 8/25/2005
Posts: 830
Sarge, there are 3 or 4 different versions of the E-brock Q-jets.  You can put whichever metering rods you want in them, and jets.  Just a quick swap out.  I have one of the versions that could probably be considered a "truck carb" but I just changed out primary metering rods and jets for those recommended by Cliff's High Performance (or you can go by the papers written by the guru, Lars) and it runs great.  Secondary rods were fine.  I 100% agree, though, that it's very common for the throttle shaft, especially primary side, to be loose and cause a minor, but possibly significant, vacuum leak.  There are kits on E-bay and the previously mentioned q-jet dealers that provide bronze bushings and installation tools to install them.  Highly recommended to take that extra step.  

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1976 Silver/Firethorn.  L48, 4spd.  Original 2 bolt, vortec heads, 9.4:1 CR, Speed Pro Cam: 224/224@0.050, 112 LSA, Eagle Steel Crank.
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