I have a Pertronix Flamethrower distributor in my 383. Stealth heads with domed KB pistons (KB400). Holley 830 and Torker intake. Voodoo Cam. I finally got my timing tape on it yesterday and got to look at it quickly before it flew off! The problem I am having is that the car runs perfect set at 20 initial and about high 40's full. Everything I am reading says this is too much but if I back it down to 12-14 and about high 30's it doesn't run as good. Any ideas???