Cheapest ways to increase power

Thats not bad. Only thing is, i want something that gives me constant power. Like for example a CAM, which i cannot afford since they are all like 500+

i bought a brand new custom cam for 125 and matching springs for 50...

wouldnt i need forged pistons for that?


depends how much boost... ive seen a guy with a STOCK stant run 13's with just a turbo and fuel upgrades