hey i am going to purchase an aod converter and i come across a B&M holeshot 3200, i was wondering if this would be ok for my car, plus i was reading on it i think it says it is non lock-up i don't know what that means, do i need lock up or non-lock-up, and should i go with this converter, and what will it do for me as i have stock converter in a rebuilt tranny with shift kit.