I remember there was an Erson grind that either Frank or Dutra or both got with Erson on to custom grind. That cam is still available today......I don't remember the grind, maybe
@slantsixdan will chime in here.........but the cam was a "reverse grind". Meaning it has more duration on the intake side than the exhaust. They found it worked rather well with the slant six head. It was a mild grind, but did have some rumpity sound to it. I think you would like it.
It suddenly came to me......it's called the reverse grind 270. That's the one.
