Hey guys, back with a update. I found a company (pstds) that makes a carbon fiber driveshaft for my car. They also sell aluminum yokes to go with it. Really looking forward to see how it go's. I just did a round of mods which consist of, CF driveshaft with alu yokes, z1 3.90 gears and rebuild kit, CSF alu radiator/Cond, and a stillen oil cooler. I also have a lot of other mods. I really hope to break 320/240 on a mustang dyno with all the mods I have, thou it might be a little lofty, considering I only made 309/225 my last dyno, but that was with a bad tune/small air leak. Well thanks for all the help also I think the company makes driveshaft's for other cars if you would like to get one yourself.