Porting DC Stage IV iron heads

Sounds like a good idea to scan those 340 cfm ports and convert them to an NC file for CNC porting. That might bring the price down to a level where people can afford them.

Watch out, baptism of fire awaits comments like these. Lol

You bet your bunghole I'd sell my port profile to an NC for 50k. Let me know I'll start working them sumbitches to swish cheese

I can get huge numbers out of a 906. Its laid back more than half the port length...