Inliners International Forums General Discussion Engines Chevy 235 head job

Jack Clifford sold dual pattern cams for years. The scuttlebutt then was that Erson ground his cams. With all of the corporate changes, my guess is that Erson, to the extent it still exists, does not have those patterns any longer. Would be fun to know if they do still have them.

As to the theoretical discussion, I stick to my guns that we can discuss till the cows come home but that real numbers on a real flow bench would be the very best and most fun. Frankly, we would even be able to sort out what effect that tiny little outward bump in the exhaust chamber has on flow, and at what lift that effect occurs, and the best way to minimize it, among other interesting information re port size, hogging the intake runner at the alignment ring lands, thinning of the guide, how much relieving is best to make use of a larger exhaust valve, all kinds of stuff.