ok what if i rebuild my 94 gsr with p30 pistons get the head ported and polished, demon motor sports will do it for 600 and they are also the ones who might do the build so i'm kinda stuck with them i found blox stage 3 cams for 300 or i don't think i can afford cams right now and i have dc header with 2.25 inside measured exhaust all the way back with a twin pass obx muffler and b16 tranny.

will those cams make a difference and can i use my stock valves with them,

i will look for the skunk2 intake manny but might not get one till later i will see if he can polish the stock intake manny,
will look for injectors but might be stuck with stock ones the fuel pump sounds strong when i start it i'm sure its after market. why do i need bigger injectors anyway

i want to get it tuned after the build and get intake manifold, better exhaust after words as i get more cash will that be ok