1967 Pontiac Firebird

[oldskool]

Originally Posted by Stan Weiss

Interesting. While it may have an AFB carb and not a Q-Jet. The Throttle and Venturi sizes listed on Class Racer Info for the '67 285 HP 326 are the same sizes as was used for the '66 335 HP 389 engine.

Stan

Yeah, I suspect that lots of Pontiacs used that same size AFB.

Same with the Q-jet. Most of the Pontiac engines used the same size Q-jet, during the same model year. There were exceptions, such as the SD455 Q-jets. Also the rare 455HO Q-jets that didn't have the outer booster rings.

Hey, some of the OHC Six engines had a Q-jet.

http://www.classracerinfo.com/Engine...6&MAKE=Pontiac

Some 301's came with an 800cfm Q-jet.

http://www.classracerinfo.com/Engine...9&MAKE=Pontiac

I suppose the main thing is that Q-jet equipped Pontiac Stockers are not power limited by the carb, since the Q-jets can feed low 9-sec SS Pontiacs. I suppose the quickest Pontiac powered SS pass may have been the 8.90, made by the GT/AA 428 powered Cobalt, raced by Robert Cruzen. That Q-jet had to be the 750cfm size. I suppose some refer to that size as the "small" Q-jet. Don't know.

https://www.dragracecentral.com/DRCS...r2016#indextop