(I'm rethinking my car's setup and trying to go for something with really good streetability and spray it into the 12s/high 11s(or turbo i feel very very bold)
If your thinking of spray or any power adder it changes everything.
You need to decide your final design/use front to back , then decide
your stall.
If your not going for a goal, you might as well buy cheap everything
and throw it all together, matching parts to work together is the only
real way to build a consistent, fast machine.