[Mark Weymouth]

I believe Dan's first test long ago was with the factory RA IV lifters. It was a stock rebuild and it made 390 hp. This is how I recall it but we are talking about ten years ago.

Personally I have had cars with them and they do not hold the rpm and do nose over more quickly than the Cranes. Now with that said we are talking about rpms that your HO I hope will never see. If it does it likely meant something went very wrong.

Larry I have been itching to get at another SD. My brother has one I have been nagging him over. I am certian we have some wiggle room for improvement over the 395 hp we got out of Paul's. Those SD's with their bigger duration cams sure do rev. Unfortunately the lack of compression and said cam hurts the torque production compared to a HO.

You guys have me so rev'd up and it is snowing around here and salt has been laid already. My season is over and I now am dying to going run something.

Mark

[threefidee]

The first pic is of a guy from the Army trying to open Mark's hood and steal his lifter and cam secrets

12.60's anyone ???