Does anyone else have a really good knowledge of the nitro, and what percentage will hurt the rods/crank? I think we could see results around 15-20%, but what about at 40lbs of boost? How much do you have to advance your timing? I have a 20 mag, and set pretty high for blower application, would just hate to push my bottom end out though.. BTW THAT SITE WAS VERY HELPFUL! Thanks, Matt