[Stan Weiss]

Originally Posted by Half-Inch Stud

Vizard has been cranking out interesting videos lately. 1 video shows how he makes biggest power with greatly-reduced Port volume: epoxy-fill the floor about 1/4" to 3/8" thick.

Pro-ceiling flow, widen the ceiling if ya can, against floor flow due to dominant flow along the Bowl+CYL backwall. Floor flow only causing misery.

I forget if sbc or BBC, but fairly irrelevant, and goes to show either JB-Weld or another epoxy, and how to drill the runner floor and side to lock the plastic in. I was impressed.

Shows dyno results compared to the known highest hp head and beats it at low and high rpm by a wee bit, and a sag in mid-range by a wee bit. Overall insightful.

I'm not about to do that to Ram Air IIs, but the 48s ( or find a set of 13s for example) would generate a good dataset.

Mark,
It was a BBC. But this has also been done in Ford Cleveland heads for many many years.

This is a Super Stock Hemi head. The rules say you can port them, but they still have to have the same port volume. In this case they brazed up the bottom of the port.

Stan