Are these swirl ports?

yellow rose said

All this worry about swirl, when in fact porting for power requires the reduction and control of swirl. Swirl for power is a power loser. Swirl is great if you want to get the cats to light off quick.

Personally, I'm not out to "save the planet" when the planet doesn't need to be saved.

Horsepower is more important than emissions any day. I make my carbon foot print as big as I can, every day. The green trees love me for it.

Click to expand...

Swirl is good for torque. That's why "the worst" heads for the Chevy small block are those things with the finger ramp in the intake port.......but guess what? All they came on were trucks and they work great for that. Everything has a place.

The book I am talking about is the Mopar Performance engine book. Not Larry Shepard's small block book, or any other book. The big thick MP book. It's in there where he says it. ........and the testing he was speaking of took place about 1973. Now, what heads was Chrysler making for the small block then?