A call to Arias asked about piston speed. There is no problem with running these slugs at high rpm. Average piston speed at 10,000 rpm is just under 4500 feet per minute. That seems like a good rev limit so the igniter boxes will be reprogrammed for that. They are at 9,000 rpm now. Another call was made to web cam. One of the ladies calculated the cam durations at .006 lift for the #813 cams I am using now. She also told me about a #208 grind that has a bit more lift and duration than the 813, but it is not too radical. Also, I mentioned my idea about using thermal barriers on the valves and running them with tighter clearances. She said it seems OK. The cams were modeled with typical Bonneville atmospheric conditions. Flywheel HP is 80 at 7,000, 83 at 7,500, 87 at 8,000, 88 at 8,500, 88 at 9,000, 88 at 9,500, and 85 at 10,000. This assumes the intake and exhaust system are optimized. This is a nice spread of power. An advantage of good HP at high rpm is that it allows higher gearing ratios and this, combined with the horsepower, will give a lot of tractive force.