[Dallas56]

Thank you for the helpful replies gentleman. I learned something from Patrick. I have engine builder flywheel number (580) and rear wheel number (404, a 30.3% reduction), but did not know that you could take a flywheel number with the engine installed and everything hooked up. It sounds like there is no rule, custom, or practice about what number you should post if you don't say what the number is. If I post horsepower numbers, I guess I'll say what the numbers are, flywheel, rear wheel, or both. Again, thank you for the replies and information. Larry Carlson