It's been down for about more than half that time(long story on the motor). I would say Get a stock motor, and put all your bolt-on goodies back on the car. Put your turbos back on if they are still good(I would change to a .64). If you have the money swap whats good on the heads like the cams, springs, retainers...(if you have them) The stock block can hold 600RWHP with no problem. Their is no need to have more power than that on the street. You will be happy!! ;-)