got a question for you guys

i hooked up a RB holley sistem on a friend of mine 85 gsl the thing is that doesnt seems to run right, but i xperimented today with timing and everytime i advance it a little it ran better. my question is how far i can advance without having any problems? plus i put 58 jets on it in the primarys i wanna know if thats god or not.

BTW is stock 12a im working on

 

well the jets don't mean anything without knoing the size of the carb first. Did you hook up the dizzy to the ported vacuum source on the holley?

I've had the best luck around stock timing, maybe advance 3 or 4 degree's, i wouldn't go too much past 5 though.

 

600 cfm holley carb and no the vaccum is not hoooked up

 

The 58's sound pretty good for a 600. I think I was running 61's in the end but it was a tad rich. What jets does RB give you to begin with? Do you have a timing light with a dial? I want to know just how advanced you are right now.

Marques

 

unless it's a rb modified holley, you'll need a 1/2" open plenum spacer.

 

he didnt buyit from RB directly, was a friend of mines kit with a marine carb that sold it to another friend of mine and he gave him 56,58,60 62 and 65 jets and seems that 58's work for it better, timing light i have one but i didnt had it on the moment when i was working on the car, im gesssing that i advanced it a good 10 degree over stock until it started running better. im gonna check tomorow how far is it and let you know

 

did you check that timing advance yet?

 

no. found out that the engine is low on compression. thats why wasnt running right in the first place. so im not worry about it. thanks for the help.