Rochester Quadrajet's

YY1 said

Interesting facts.

Thanks for sharing.

I have one of those 1971 buick carbs sitting on a shelf since the 80's.

Now I think it will go on ebay :)

Click to expand...

YY1,

It should be Part #7041243 or #7041242.

If you open up the throttle, and look down the primary bowl, there
should be 'no taper' in the bowl, just below the Booster Venturi.

Just '2' small bumps on each side of the Round bowl.

That's the 800 CFM series, with the 1.218" Primary Venturi.