I am running a 330HP 350 behind my TH400. What torque convertor would you guys say to run? It is going to be mostly for 4 wheeling and I am adding a doubler if that matters. Also I am taking my TH400 to have it rebuilt soon. What would you guys say to tell my tranny guy to add to it? It has a B&M stage 2 shift kit in it, I think I am going to tell him to either leave that in there if he can (can he?)Also is there anything else you guys would say to add? Whats the deal with manual valve bodies? Thanks!