Quadrajet Problem Solving > Quadrajet Parts and Numbers

Quadrajet numbers? 045222 r6 1085

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vnon:
Hey all.  Looking for some help.  I picked up what I believe is a # 3970010 1975 Chevy 350 corvette motor with a 1975 quadrajet.  But on the carb there is no 7 before the 045222   and theres a r6 and 1085.  I need to know about the power piston.  All the quadrajets that I have seen from this era have a stem coming out of the bottom of the power piston.  This one doesn't.  Its empty.  Is this something special for the corvette motor or do I need a new power piston.   

Thanks, Vance

carmantx:
That Quadrajet has the internal adjustable part throttle screw, so it has a different power piston and does not have the pin in bottom.

Ethan1:
 Also, a lot of the Rochester's did not have the "7" before the rest of the numbers. Why, I don't know?

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