Re: [Chevelle-List] Two Barrel vs. Four Barrel carbs...

[Rodney.]

I think one of the best improvements I made to my car was putting a Holley 4412C on my car... it's a 2 barrel 500 cfm with 50 cc accelerator pump...   It made a noticeable difference over the 2 barrel Rochester I had on there originally.   It says it's not emmisions legal, but I've been passing every year with no problem.  I actually score better now than I ever did with the Rochester.   You definitely don't need over 500 cfm for 307 ci   Rodney. 71 Chevelle Phoenix, AZ   ----- Original Message ----- From: Morris, Jason To: '[EMAIL PROTECTED]' Sent: Saturday, September 22, 2001 12:09 PM Subject: [Chevelle-List] Two Barrel vs. Four Barrel carbs... I've come to the conclusion that I need a new carburetor.  I'm wondering how far south is my MPG going to go if I upgrade to a four barrel carb.  I'm getting about 14mpg right now with a two barrel Q-jet, on a 307.   Also any other information (on the subject of changing/upgrading carbs) would be great.   Thanks   JM 69' Elky