Pontiac GTO Forum banner

1 - 4 of 4 Posts

·
Registered
Joined
·
11 Posts
Discussion Starter #1
Hey just askin if i can remove my afb carb and mount a 1972 q-jet #7042272 with no mods on my 66 389.
 

·
Registered
Joined
·
668 Posts
The AFB and Qjet have different mounting patterns. The AFB ks square bore like a Holley carb, both primary and secondary are the same size. The Qjet is spread bore with small primaries and huge secondaries. It wont bolt to your manifold, but you can swap a 67-72 intake on it or an aftermarket intake that will accept a Qjet. You can also use later 73-79 intakes, but they have EGR which isnt a problem, just a bit more complex and require a valley pan with a larger depression in them.
 
1 - 4 of 4 Posts
Top