Hughes convertors

I've only used one. Installed it in a buddy's 1 ton chevy truck with a fresh and stout 454. It was rated to stall at 2000. It only stalled at 1700-1800 even in that super heavy truck with a torquey engine. It seemed to hold up good though as he's beat the living crap out of it and it's still going fine today 4 yrs. later.