A 9sec build. Jk, kinda. It's not that bad from what I hear. Stage 3 Lonnie Diers should do it. I bought billet forward drum and input shaft, as many good clutches as you can stuff in there, big billet servo and boost valves. Some say you need to dual feed it but I think a good pump and no checkball in the input shaft and it'll shift hard. As long as you can keep the shifts quick and firm, just the normal hard parts are needed to make it live. I have almost 300 passes, 60k miles, and nothing but two fluid changes. I guess I did have to pin the governor spring and replace a bad tcc solenoid but that's normal too.