Intake Port Tumble

Well, how about you write and tell me what to do with the oddball 308 intake port roofs Senor Donethat?:prayer::D Should I modify them or leave them alone? Just teardrop the guides in the bowls and let it go?


The Stealth "might" be a better intake on certain builds (although unless memory serves wrong all the tests on both strokers and 360s I've read about that included both the RPM beat it) But fit-wise it is no better than anybody elses.

On the roof - The 308s are designed to induce swirl. Hence the tapering and twisting of the guide boss. If it were me, I'd pretty much leave them alone. The "less is more" theory. IMO the entry work you did was good.