Timing Advance

[vozzy]

Going to run Trinity or Noss head w/ 19 or 20 cc domes, and race gas.What is an acceptable timing advance for this setup? was going to start w/ 4 degrees advance, and go from there.

[odaen]

I think 4 degrees would be plenty conservative. I got 21cc domes running pump gas at sea level, and my timing is set at 4 degrees.

[flotek]

youll be fine with+4 or +5 timing especially if you only wan ta 20cc doem and will run high octane fuel on stock porting