You can reach me at phinishline@yahoo.com for comments, questions, and suggestions.This is a screen shot of the program. You can download below.
This is a Microsoft Excel (5.0 or higher) program submitted by Terry Parker of Vmax Racing. It will show you how your header pipe is affected by different variables of the engine and just show the same for different headers.
Download - HERE.
You can reach me at phinishline@yahoo.com for comments, questions, and suggestions.