[Rascal_one2001]

I run a trans shop I would never run a bolt on over drive since they break a tiny internal spray and you loose reverse then have to have the entire unit rebuilt. If you have a bop engine yes the 200 r4 is your best bet but since you have a Chevy engine go with the 700 but you will have to have it headed up to handle the torque same with the 200. If you break down both transmissions and look at the hard parts and planetary gears you would run 700r over the 200. You can put raybestos stage 1 clutches, beast sun shell, 5 pinion planets, corvette servo and z pack 3-4 clutches and a 700 is good for 500hp