I'm trying to pick a transmission for my car.I thought about going with a magnum t56, but had a change in heart and want to go auto. I can't tell which is the better transmission, AOD or the 4r70w? my car specs are on my sig, but want something to hold about 800hp for next time I upgrade the engine. I do mix street and strip, about 50/50, and was thinking of a luck up convertor. I am going to build it myself as well. does anyone also know what is done when the big companies say " Clutch cylinders modified for extra clutches"?