View Full Version : The best Q-jet

04-16-2007, 01:45 PM
What would be the best Q-jet model for my carb'd 3.8. Im looking for somehing I can tune-up. Also I want one that has a good balance of performace and econ. The 1978's didn't come with a computer so it will have to be mechincal.

04-16-2007, 08:15 PM
Factory Q-jet carb have various cfm ratings.
800 CFM being the larger one.

Eldebrock make Q-jet replacements. They are new.

Chevy uses a different fuel inlet location than, BOP carbs.

Service numbers (Factory Replacement).
7040255 for 1970 Cutlass W31.

04-17-2007, 09:48 AM
Is this a turbo car? If so, I think those Q jets had unique shaft seals and such?

04-17-2007, 03:39 PM
Yea it turbo charged. So im guessing that i should get a model the same as in my car now?

04-17-2007, 09:28 PM

I didn't understand you needed a turbo carb.
Ken's pretty sharp!

I gave you a good Q-Jet# for a N/A engine!

Me Sorry! :duh: :duh:

04-18-2007, 01:55 PM
It's ok, ken is a sharp guy alright.