Since my Vette still runs like crap when cold, after the shop had three attempts at fixing it (rebuilding the carb, etc), I am considering replacing my carb with a new one.

Does anyone know anything about this carb that Mid America sells:

http://www.madvet.com/shop?frame=4.139.3867

 

This is just my experience, so take it for what it's worth. I've had several Holley's on different cars over the years. I have a Quadrajet rebuilt by a guy in Rockford, Illinois called The Quad Shop. I had mine rebuilt and restored, (everything replated and recolored). I think it cost me around $400. It runs just slightly rough when it's cold, but warms right up and idles nice. All the Holley's I've had were great for speed, but I wasn't real happy with the idle. I had a '66 Mustang with a 289, I bought a new Holley 650 for it, but ended up selling it and rebuilding an Autolite 4 barrel, wasn't as fast, but ran alot better. The guy from the quad shop might be able to help you and save you some dough, he specializes in Q jets. www.thequadshop.net

Matt  

Adam, to me on a Chevy nothing works like a Q-Jet.Summit Racing has Q-Jets from Jet Performance Products for $359.95.I bought one a while back it worked fantastic right out of the box, just a couple minor turns of the screwdriver. Check them out.

  Dave

The Holley you're interested in will bolt right on, but expect the EGR valve to be in the way and need an adapter that Holley and Edelbrock each sell.

I'm with Matt and Lynne...I like the Q-Jet. Has your car had the cam replaced? If so, maybe your carburetor needs re-jetting to match the different cam specs. That's the problem my '78 L82 had...the previous owner put in a bigger cam and never had the carb jetted to match. It was in a constant lean idle condition and ran like crap unless the rpm's were high. A professional rebuild and re-jetting cured the problem and it runs great.

[QUOTE=Gunslinger]...Has your car had the cam replaced? If so, maybe your carburetor needs re-jetting to match the different cam specs....
[/QUOTE]

My engine was replaced with a GM Crate 350ci 249hp.  Had the carb rebuilt recently (about 2 years after the engine install).

I bolted that Holley on my '70 and it worked great. I had the Q-jet rebuilt twice and it failed both times, so I just went for the easy way out.