The weakest point in your setup will be that SSAC kit.
Main Stream can fab, tune, and install a very reliable turbo kit for you for about as much as you'll spend replacing parts on your SSAC kit.
Speaking from experience here... do it once, do it right.
Edit: But you should be able to do 250whp all day long on stock block. I've seen people push the envelope at 300whp, but don't expect it to last if you beat on your car a lot.
