[Swifty1638]

for 500, i'd leave the motor alone. Don't bother. Stock is plenty fine. You will waste money on the HD shit unless you go with a real turbo, and try for much more. Meth injection...not needed. Run corn fuel, like the rest of us. rewire fuel pump?? for that turbo..no. Head? Also leave stock. Worry about a good headgasket and headstuds if anything.