Michael, the valve angles are straightened up on the SS/AH motors, unless technology has advanced in other areas that I don't know about. The losing of charge on the overlap cycle has been a problem for a long, long time....but with all of us running fairly low rpm in the old days (8g max) it was never really something that was a big deal.

Landy roller rockers was the best you could get back in those days.

Personally, unless you are doing some kind of class racing, I think that really buzzing up a Hemi to run brackets is kind of dumb. With the camshaft profiles and big inch motors available today there is no need to. Just like running with real light oil....if you are running brackets, what's the point?

Just because the SS/AH guys do it doesn't mean it's right for everyone.