Valve overlap

[FireSale]

Originally Posted by SSDiv6

Sorry Dale, you cannot run aluminum cylinder heads in SS/CS class, only cast iron, inline/wedge heads only.

OK. I read this revision as "Aluminum heads OK. No billet in modified classes except CS"

2017 revision:
Aftermarket aluminum cylinder heads permitted (no billet) except in CS.

I'll take the car to ETI in March and see. I'm beginning to not care any more.

Back to camshafts.