i would like to have a garrett stage 3 turbo and 140 injectors but i have the stock camshaft, and i dont have the tools and or truthfully the skills to chang the cam, so with the stock i would have to go with the stg 2 and 90 hp injectors. i can do those myself and the stg 3 and 140 arent much more than the stg 2 and 90s, so is the cost of having the cam swapped worth going to the next power level or should i just stick with the mid level.