[blykins]

McLeod or RAM, hands down.

For SBF's, I use 10.5" diaphragms, 100 series McLeod or HDX for up to 400-450 hp. With 500-550 I use RAM Powergrip or McLeod 500 series.

For FE's, I use 11" Long, same deal with the disc and horsepower ratings.

If the hp is over 550, I talk with the customer about what he values more....a single disc, less expensive clutch that could chatter, or a more expensive twin disc that will drive like a VW.