Cliff's Quadrajet Parts and Rebuild Kits

General Category => Quadrajet Carb Talk and Tips => Topic started by: pat469 on March 18, 2014, 05:45:26 PM

Title: early SMAB chevy carb with apt in the base plate
Post by: pat469 on March 18, 2014, 05:45:26 PM

Hi all, Im new to your website.I have THE BOOK but Cliff dont give us jetting for a EARLY SMAB.I do one for a 350 chevy 12:1 comp ratio 255 at .050 solid cam.Big number ,i know.I have 40b rod and drilled the SMAB to .085.Should i go with .070 or .078 jet??or between??

Thanks to all,greatwebsite.

By the way I ran a 1970 lemans sport 455 th 400 3.55 to 11.80 4040 pound with gas pump!

Title: Re: early SMAB chevy carb with apt in the base plate
Post by: pat469 on March 19, 2014, 07:31:37 PM

Carb number is 17058213,anyone as Idea for base jetting?

Title: Re: early SMAB chevy carb with apt in the base plate
Post by: Ethan1 on March 19, 2014, 07:42:54 PM

Quote from: pat469 on March 19, 2014, 07:31:37 PM

Carb number is 17058213,anyone as Idea for base jetting?

 Welcome to CHP!

 Stock primary jets for that carb were .063". Do you need metering rod specs as well?

Title: Re: early SMAB chevy carb with apt in the base plate
Post by: pat469 on March 19, 2014, 08:26:13 PM

I look for custom jetting it for chevy 350 12:1 comp ratio and 250 at .050 solid cam.
I have .040b rod and SMAD is drilled .085

Thanks a lot

Pat