[496fe]

I designed my engine using desktop dyno software. If you take the time to get head flow numbers (they are available for every FE head imaginable) and plug in manifold, carburetor, valve size, etc. you can get very close to real life. My power curve from the desktop dyno printout almost perfectly overlaid the actual chassis dyno printout. The actual HP was 4 HP different than the software prdicted!

I found that there are too many variables in play to accurately predict power characteristics of any engine/cam configuration. You need help from a computer. I know I will get flamed by the old-school builders, but if you don't have the experience of a KC, a Southern Automotive, or a Gessford, you need help, especially with the large displacements available recently.