Like Hotrod, I use a computor dyno as well. I have the Performance Trends brand Engine Analyzer and the Dragrace Analyzer. Once you build the ideal engine you send it to the dragrace program and install it in a car or truck of you choice. Make drag runs and see what happens. Making peak horse power is easy on the computor, doing it in real time is a lot harder. For the money, they are a great tool and fun program to play with.
Joe