Hughes converters?
Hughes makes decent converters. I've used 2 in the past and mechanically they lasted good but the problem is all I've seen them offer is off the shelf units that almost never stall what their rated at. The last one I used I put in a buddies 440 magnum Challenger. It was rated at 3000 stall and even with a very good running 440 magnum it only stalls 2800. As the guys mentioned a custom converter is the way to go. If you ever got to experience how much difference a good custom converter can improve your cars performance you'd never by an off the shelf unit again.