Bill Dowdy Converters in Pine Bluff, Ark also builds a great converter. He is a MOPAR guy but builds for all x brands also. I have one of his in my 72 demon drag car, 408 flat top, flat tappet 568 cam, 2800lb. 4.88 gear, best 60 to date, 1.39. Oh buy the way I ran it for 5 years without any...