Bone Stock 318 Magnum dyno run.

I'd like to think the same, being what you know.
Thing is , that pinch....its massive and makes lots o air speed, also the bowl doesnt seem near as deep, water under the spring pads....how reliable would you guess a mag head moving flow like a [email protected] la head is?
More crack prone ?

I'm not losing any sleep over Magnum heads cracking. Every Magnum engine I have ever torn down had cracked heads, every one. I have never had to tear down a Magnum engine because the heads were cracked.