4000's are the best mod. His truck being a 215 pump a plate and more boost will make them run pretty decent. With a stock turbo and timing your truck will be done by around 3300.

 

Im not wanting to do too much more to it. I want to keep the reliability as high as possible. The only other engine mods I want to do are the 4gsk, hx40 (depending upon further research) and advance the timing a smidge. I may put in a small set of injectors later on but that will come after everything else.

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Oh and a set of head studs when I put in the 4gsk along with either 60 or 100# valve springs.