[Chevy454]

Steve: what are your intentions with your car? If it's NOT gonna be a regular at the strip, I'd just get a THM400 from a reputable tranny shop and be done with it...it will last forever, and if you're wanting the look of the 6-bolt converter then buy one (don't they repo these?) and bolt it on. If you want to get really involved, B&M sells a governor weight kit that explains how to taylor the trannys shift points to your needs, but I wouldn't mess with it...