J head porting

273 said

steve dulcich porting 360 heads

360 Engine Head Porting - Mopar Muscle Magazine

Porting Exhaust Smog Heads - Mopar Muscle Magazine

Click to expand...

I’d bet 23 years later he wouldn’t use a 30 degree seat. If he would he is way behind in his thinking.

Shape matters more than flow. Way more.