I have recently decided to swap to a th400 from my current c4 set up. The car is a 3400-3500lb 2003 cobra, 283ci (+20 bore), 9.2:1cr, 98 cobra intake cams, ported mach1 intake, cg fab headers, custom 2.5" cross over, 4" open down pipe, 3 to 3.5" cold pipe with 31x12x4 a/a cooler, pt88 turbo, vmp hpx maf, magnafuel 750 protuner, return style fuel system on e85, with 160lb low impedance ford injectors, built 8.8, and currently leaning toward a locally built th400. I plan to get the ball rolling monday morning on the trans. I'd like to order the converter at the same time, but am having trouble making a final selection. It's a street/strip car but I want it to get down the track as fast as possible. I'm down to UCC or PTC I think. Let me know what experiences you all have. Descriptions of your set ups and 60' / 1/4 mile times would be great! Any feedback is appreciated!