Just thought I would thro in my 2 cents- Once upon a time, I bought a GER Thunderbolt converter because I saw it in a mopar magazine and it was cheap. Thought, hey if its in a mopar mag, it must be good. it was a 3400 rpm stall and I put it in my challenger behind the 360. Well it went down the track @ 13.0 sec and 106 mph.
Later i talked to a guy that said I could get alot more out of my car if I went to TCi . took his advice- he always seemed to be right. Well , he was. I bought a TCI 3800 stall and went down the track @ 12.7 @ 108 mph. All I did was swap the stall and got 3 tenths of a sec. No more cheapo off brand converters for me. I can't stand to waste Horsepower- it costs too much 4 to bolt on and not use. :beer: