first of all i am putting a 383 stroker in my 85 camaro, and i know its a lot more torque and hp than the 305 puts out. but what i need to know is first is it worth it to rebuild the 700r4 or should i upgrade to the 4L60? will the 10 bolt rear end take the punishment with a little beefing up or should i save the 2 grand and buy a 12 bolt? and what should i do to properly beef up the driveshaft? john