I have a 66 mustang with an auto trans and 289 in it right now. Im looking to convert it to a manaul transmission over the winter. right now i would go with a T5 but its only rated for 330 ft lbs of torque. either next year or the year after i want to put a new engine in it. probablly a 347 running about 400-450hp. so my question is what maual transmission would you guys recomend??