I can't see how they would flow any better than the good logs. My long bolts have a better angle
and port match up. (ported now)
They only flow what can fit out the hole and the exits were the same size.
I wish I could say I ran the logs and these manifolds on the same engine for comparison but I didn't.
I had to switch to logs because these WOULD NOT clear the tall valve covers. I tried spacers but no good.
If you go to these manifolds you will NOT use tall valve covers.
On the plus side they in my opinion sounded deeper than the logs in tone. I liked that.
Here's a picture of them on the old engine. Note how close they are to the valve covers. TIGHT FIT
So do they flow better? Who knows, they have the same ports, exits and bends as the logs just a different package.
If you do put them on please let us know if you see any differance.
