I agree, go for the rebuild with the parts you want, if i may reccomend, i suggest considering an lt4 conversion along with the rebuild: LT4 Hot Cam Kit - LT4 Intake Manifold - Bow Tie Roller Rockers - LT4 Cylinder Heads - & all necessary Gaskets. The kit costs about 2300 and will put you up to at least 425hp. Then if you replace your fuel system also, and throw on headers and full exhaust....you'll be talkin about 475hp AT LEAST....just my