Slant header ID?

Not really, but there's no sense porting the head, doing bigger valves, adding a much better cam, intake, and carb, and then choking it all off with the exhaust. The shorty headers fit just fine and are getting their final mock-up today. I should be sliding this thing into the truck this weekend. Haha, that is if Mr. Murphy stays the hell away from my project for a bit.