[dozerboy]

If you really want some power and are willing to add drugs or mod the block get the best tranny out there Suncoast stage 5 or the ATS stage extreme 4. It you just want a pretty fast ~500RWHP truck Suncoast stage 3 or comparable. Stock is 22-23psi. Exhaust is a must and stock intake should be replaced if you want to go higher than 500RWHP. Gauges are a must. With drugs (n2o, propane) stock motor has hit 800RWHP. But daily driven fuel only 500RWHP is about it before things start to go, but the LBZ should hold more yet. I suggest if you really want to get into Dmax performance join dieselplace.com and do some reading and searching.