The Infamous Quadrajet Moan

Making a full-throttle pull on the chassis Dyno with our 1972 Pontiac Trans Am with 455 H.O. engine.

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Quadrajet sound
Q jet secondary operation

Quadrajet moan
Newly rebuilt original Q-Jet on my 400ci 1977 Pontiac Grand Prix. Taken during an 1100km/700mi road trip here in New Zealand. It used to stumble when cold and surge/hestitate at higher revs. These are gone now :-) Car is all stock including EGR etc. No modifications at all apart from removal of catalytic converter.

78 trans am fast quadrajet
quadrajet at work gopro

Rochester Q-jet vs Edelbrock Carb