Cliff's Quadrajet Parts and Rebuild Kits

General Category => Quadrajet Carb Talk and Tips => Topic started by: mcx on February 08, 2019, 07:27:23 AM

Title: 1973 Buick 750cfm
Post by: mcx on February 08, 2019, 07:27:23 AM

Cliff...I picked up another carb off eBay, it's officially a addiction...anyhow, this carb has idle air bleeds in the airhorn located next to the main(very small bushed type)and hold down screw...none of my other three carbs are like this, even my 1973 Buick 800cfm is not like this one, or the 1973 Cadillac....another difference is the Buick 750 doesn't use idle air bypass(not drilled in base and main section compared to the 800cfm.

Title: Re: 1973 Buick 750cfm
Post by: Cliff Ruggles on February 09, 2019, 02:37:59 AM

Many early Buick carbs for the 350 engines will not have idle bypass air and upper idle bleeds in the airhorn....

Title: Re: 1973 Buick 750cfm
Post by: mcx on February 09, 2019, 08:43:51 AM

Thanks Cliff....what is name of this bleed?

Title: Re: 1973 Buick 750cfm
Post by: Cliff Ruggles on February 10, 2019, 04:08:30 AM

It's an indirect bleed leading to the main nozzle, best to stay away from those but make sure they are not blocked.......Cliff