View Single Post
Old 12-19-2010, 09:03 AM   #7
C20-67_N_MO
Champagne Taste on Beer Budget
 
C20-67_N_MO's Avatar
 
Join Date: Dec 2008
Location: High Ridge, Missouri
Posts: 2,190
Lightbulb Re: Quadrajet 4MV too small?

Quote:
Originally Posted by Lee H View Post
If you can not find the old parts you could go electric. Edelbrock part number 1932 is a good choice.
Yeah I would rather keep it simple and go this route; as I was hoping there was one that fit for this old dog. Thanks appreciate the assistance, but this kit is for the converstion from hot air to electric. Guess I will need to do some more googling.

[quote=capev86;4358136]a 350cid will not use more than 600cfm without forced induction, so a 750 q-jet should be fine for that 455. there was an 800cfm q-jet available in the early days that found its way onto the muscle cars. you could always have your carb bored out if you have a super high output engine and spend a lot of time at max rpm.

i ditched the original 2bbl on the 307 in my 72 burb c20 in favor of an edelbrock performer intake (idle-5500rpm) topped with an 80's q-jet. turns out i picked up one with a temp controlled accelerator pump. the temp fix was to turn it back so it runs right when fully warmed up. between that and no choke t-stat hooked up it takes a bit to get it started but it is not my daily driver and i will have the correct type of carb on there eventually.

the carb had been rebuilt recently and was on a 305 so i figured the jets were about the right size for that 307. i covered the whole setup with a dual snorkel air cleaner base from an early 70's chevy car with the big top of my dad's old 84 burb c10 350/700r with the towing package. it takes a big 14x5in air filter and will look awesome once i get it painted up in gm black. i like when i can use factory parts to hop-up a vehicle and get a custom combination that is completely bolt in and looks like it came that way.


How do I know for sure my Quadrajet is at least a 750cfm carburator?

Does the model number confirm that fact? As I could not find a reference to it at all; only the application it was on as stated by Lee H and my own research.
__________________
Coming Soon: Project 1970 Country Truck

Last edited by C20-67_N_MO; 12-19-2010 at 12:16 PM. Reason: Corrected some facts
C20-67_N_MO is offline   Reply With Quote