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JTknives · 05-10-2014, 10:54 AM

I have been playing with the timing a bit as stock timing did not seam right. Book says like 4deg advanced. Right now I think I'm at 12 deg advanced I can go more but I don't know where to stop. I can get to a point where the engine changes sound and seams to be having a harder time but that's WAY advanced. I have the vac advance connected to the ported side on the carb. I have tried manifold vac advance and it idles fine at what I'm guessing is somewhere around 20-30 deg advanced. I am now switched back over to ported vac. When using manifold advance I have to turn the idle screw way down as it will jump from 700-800 rpm on ported to way over 1k when I switch to mana vac.

05-10-2014, 10:54 AM	#6
JTknives Registered User Join Date: May 2014 Location: Prove, Utah Posts: 9	Re: New to all this, fighting my new carb on my c10 I have been playing with the timing a bit as stock timing did not seam right. Book says like 4deg advanced. Right now I think I'm at 12 deg advanced I can go more but I don't know where to stop. I can get to a point where the engine changes sound and seams to be having a harder time but that's WAY advanced. I have the vac advance connected to the ported side on the carb. I have tried manifold vac advance and it idles fine at what I'm guessing is somewhere around 20-30 deg advanced. I am now switched back over to ported vac. When using manifold advance I have to turn the idle screw way down as it will jump from 700-800 rpm on ported to way over 1k when I switch to mana vac.