I'm not really sure how much I have into it. I probably have about 3000 into the turbo kit including injectors, mass air, and fuel pumps. The heads I have are Trick Flow TW they have also been ported and flow just over 300cfm. And I'm running an Anderson PMS. The car before the turbo went 11.67 with h/c/i and a 100 shot. I'm going to the track in about a week and I'm hoping for mid 10's or better.