Hello everyone I just got my head back from the machine shop and they just put in supertech, dishes black nitrate valves,dual valve springs, retainers, keepers, valve guides on my b16b head. This is my first build and was wondering what difference will I be expecting from this upgrade valvetrain? Also has 725cc injectors from injector dynamics, msd, hondata s300v2, jdm itr 4-1 header, buddy club spec 2 exhaust, and a stock block. Thanks for help..