Reply to "Optimal Timing?"

Your motor is set up much like mine with the same cam. I have a Street Demon 650 cfm and closed chamber heads with about 10:1 compression. Right now I have mine set at 17 degrees initial advance and total advance of 40 degrees. Prior to this setting, I had mine at 16 degrees initial and 38 total. This seemed a better setting and my engine ran well. I was interested to see what impact, if any, more advance would have. I would be interested to know where you finally end up. Based on my experience and a sort of trial and error method, I would start with an initial of between 12 and 16 degrees and go from there. My car seems to make its best power, idle reasonably well, and not overheat at 16 initial and 38 total.