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- - 1972 / 350 q-jet size (https://67-72chevytrucks.com/vboard/showthread.php?t=787061)

BCOWANWHEELS

05-18-2019 12:06 AM

1972 / 350 q-jet size

anybody know the cfm,s of a factory q-jet carb on a 350 from gm.
thanks

geezer#99

05-18-2019 12:22 AM

Re: 1972 / 350 q-jet size

750 cfm

External

05-18-2019 12:54 AM

Re: 1972 / 350 q-jet size

Anyone know the fuel psi factory quadrajet likes?

weim55

05-18-2019 10:20 AM

Re: 1972 / 350 q-jet size

Quote:

Originally Posted by External (Post 8527549)

Anyone know the fuel psi factory quadrajet likes?

750cfm

6psi

Steve weim55 Colorado

BCOWANWHEELS

05-18-2019 04:35 PM

Re: 1972 / 350 q-jet size

I thought 600 for sbc and 750 was bbc q-jets

geezer#99

05-18-2019 05:01 PM

Re: 1972 / 350 q-jet size

750 for sbc, 800 for bbc.

BCOWANWHEELS

05-18-2019 05:38 PM

Re: 1972 / 350 q-jet size

750 is alot of carb for a tk 350 imo

geezer#99

05-18-2019 05:51 PM

Re: 1972 / 350 q-jet size

Maybe!
Versatile carb that because of it’s adjustable secondary air valve can and has been used on much smaller motors.
Pontiac sohc six of 250 cubes for one.
You should experiment with two quadrajets on a dual quad intake. I did. Sounded a lot like a 426 Hemi with dual afb’s At wot!

BCOWANWHEELS

05-18-2019 06:25 PM

Re: 1972 / 350 q-jet size

I run 660 holleys on my t-rams except my 302 ford street rod then 2 x 450 holleys

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