Cliff's Quadrajet Parts and Rebuild Kits

General Category => Quadrajet Carb Talk and Tips => Topic started by: Mr.Pontiac on July 01, 2018, 06:53:03 AM

Title: Best base plate for a 17057274 800 cfm q-jet??
Post by: Mr.Pontiac on July 01, 2018, 06:53:03 AM

After some research, i see this carb. had hidden idle screws . My carb. giving to me has no base plate. Is there another yr. i can swap on the body for better maintance and performance to make it come alive?? Strictly for a drag car.

Title: Re: Best base plate for a 17057274 800 cfm q-jet??
Post by: Frank400 on July 01, 2018, 06:14:22 PM

Not sure I understand your question, but your cab, 17057274 does not have "hidden" idle screws as you say, as this is a 79 and up deal only, and yours is a 77, with still 10-32 idle screws.

Title: Re: Best base plate for a 17057274 800 cfm q-jet??
Post by: Mr.Pontiac on July 02, 2018, 12:20:52 PM

Frank, my 17057274 carb. has no base plate, I have seen on the internet that it had the hidden screws under the caps. Can i go 1 yr. newer on a baseplate and make it work???

Title: Re: Best base plate for a 17057274 800 cfm q-jet??
Post by: Cliff Ruggles on July 04, 2018, 03:51:42 AM

Incorrect.  The hidden screws were first used on the 17059263 Pontiac 400 4 speed carburetor.

The 17057274 didn't use them and only uses two screws to hold the baseplate to the main casting, the later one uses 3......Cliff

Title: Re: Best base plate for a 17057274 800 cfm q-jet??
Post by: Frank400 on July 04, 2018, 06:12:40 PM

7043308 is the casting number on a 17057274 baseplate.

Title: Re: Best base plate for a 17057274 800 cfm q-jet??
Post by: Mr.Pontiac on July 07, 2018, 12:27:49 PM

Both are correct, yes 2 screws. Thanks for the input