I, too, believe that rpm is the factor one should use, rather than hp.

We run a Hemi in Nostalgia SS, and use an out of the box Milodon 7qt pan, modified Mopar windage tray, and the Milodon 1/2 internal pickup, stock replacement bolt ons.

We run the motor to 6500, and it stripes about 6700 with a TRW high volume pump. The motor is clearanced loose, that is the way I like 'em, and we use Valvoline 50W in the heat of the summer. It holds about 65lbs through the pass, and we have never had a lick of bearing problems.