Cruising with a high stall converter

i run a ,4400rpm stall, dynamic 9.5" converter, very nice and when the throttle is held steady like at highway cruise seems to slip very little, I would say you would need a stall in the 3,500 rpm, no headers, and the performer, is going to hurt your HP without headers i would say your right at 325hp add a 750dp, rpm manifold , and good headers then that cam will work good and should put you at 400hp