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im in the process of fine tuning my motor after installing a camshaft. So far it seems to run the best with 22 degrees initial with no vacuum advance. i run 93 octane and it doesnt spark knock but im hesitant to run any more initial. does this sound to radical? ive always heard fes liked alot of timing.
I run 16 deg base with 10 vacumn advance, At WOT I have 36 deg all in by about 2800 rpm. This is on a 432 cu in stroker with a lumpy cam and aprox 10 to 1 compression. I have to run 91 octane or better. Car is a cruizer no track time.
There are 3 different kinds of ignition timing, the initial at the crank, the mechanical that's added by the dizzy weights and the vacuum that's added by manifold vacuum or ported vacuum. You've told us that you're using 22 degrees at the crank and no vacuum. What about the mechanical at the weights? What's the total initial and mechanical and what rpm is it all in? Please list the cam numbers.