quadrajet carb

[superman6204]

i need to know the seting for the jets... i guess it it ithe jets, the two screws on the front for the air and fuel

[superman6204]

i know alot about motors and stuff...jus not carbs...i know a have a bad @$$ motor..it  is a complete roller motor, from the rockers... to the cam ..its sweet..with flat top pistoons, high rise intake...but it is not up to its full potential, i am hopeint hat setting my OLD carb will help...it came of about a 80 models olds mobile
i got plenty of high r.p.m. power  ...but my take if isnt so great  

Edited by: superman6204 at: 4/11/04 2:38 pm

[79c10junkie]

The basic starting point is 1 1/2 turns out.Screw both in all the way,then turn each out1 1/2 turns.This is just a basic preset.THE TRICK IS TO GET THE highest idle youcan from the adjustments.Every carb runs different on different motors.So you'll have to play w/ it untill you get it right.Hope this helps.

               79c10junkie

[superman6204]

thanks..i had now idea where was even close....thanks

[OldFred]

Since this topic came up, thought I wouls ask something.

Lets say I start at half turn out on the idle mixture screws, where should my idle speed screw be at to start? Shouls I set rpm to 750 with the idle speed screw and then adust the mixture screws or vice versa? I'm a little confused on how those three in tandem get set correctly.

Thanks

Mike
'84 Blazer

[roundedline]

Set the idle at 750rpm and then adjust the mixture.  Once the mixture/timing is set, you might have to re-adjust the idle again.

Chris Lucas
www.73-87chevytrucks.com
www.captkaoscustoms.com
Project Su
Jimmy 2WD Project