Hey im finishing my ported heads and im about to start on the exhaust port. i know better then opening it all the way to match the gasket and header, as you want the D shape or box shape in our case to prevent the flow from reversing and coming back in to the chamber.
my question is i cant find any good pictures of finished exhaust ports. i know that the exhaust port can make or break a ported head and im just starting to assume that these port shapes are kept a close secret. im toying with reversion barriers... i just would like an idea of what is common with the big three when it comes to these ports. ZZP actually has tape over the ports and painted them to hide the port shape on the pictures of their heads. WBS has a very very small picture so its hard to see the shape.
any input would be apreciated. i do kinda have a plan and idea of how im going to shape the ports.
