New Magnum heads for 347 with Flow data

Considering how the port is acting and has acted all along-there is only 1 or 2 things to look at. The pinch or the S.S. I know the S.S. is tall and nice and I also know that laying it down or shortening it can unlock some flow. Usually though you trade low lift flow for high when dealing with the S.S. I went in and used a smooth carbide to just lay it back .020-.030" and finished it with a sand roll. It flowed quite a bit better and the stalling point moved up to exactly .435". I will wait until I have the manifold on it to do any further testing. A manifold will usually calm things down which allows the flow to hang on better. J.Rob

.1 64
.2 128
.3 191.5
.4 228.5 *233 @ .435"
.45 224
.5 219
.6 219

p.s. Make no mistake-I have quite a few hours in these heads and would have to charge a decent buck to do this. However I would move to a set of EQ's and never look back.