1969 Chevelle COPO 427

[Alex Denysenko]

Originally Posted by Dan Bennett

About 20 years I saw an original 1960s Carter blueprint for an AFB three barrel. It was for NASCAR Pontiacs but I have no idea if it was ever actually built or run.

It did the secondaries just like Holley - the carb looked identical to a regular AFB until you looked down the secondary throat.

You are correct Dan.

Carter 3636S

950 CFM 3 barrel built specifically for 421SD Pontiac

Holley had 3 versions of the 3 barrel.

First were for NASCAR Hemi with LeMans bowls like a Ford GT-350 289 715 cfm or a 427 FE 780 cfm single 4.
That carb on a cross ram bath tub style mag intake was the only "real" single carb Hemi in 1965.
950 CFM

Then came aftermarket 950 4150 cathedral bowl and a year later a 1050 version with big holes in the choke plate.