Desperation

dartley,

My creation is a quench engine with closed chamber magnum heads and 10.56 or 10.58 to 1 compression. Up here in Canada our best gas is 91 Octane. I am pretty sure it is calculated different in the U.S. and it would be similar to your 93. There is absolutely no ping coming from my engine and it runs hard from idle. I really don't want to touch it, it is running so good.
Basicly I set the timing by advancing it as far as I could until I got some pinging, I then backed it off 3 degrees. I set the mechanical advance at 18 degrees and ended up with 16 init and 34 total, all in at 2500.

Jack