claying the motor is the best way to tell if you will have valve clearance issues. It's a bit time consuming and since I am sure what you are doing has been done before I am sure you would be able to find some info on whether there are any clearance issues. I would imagine that with a small cam such as the Stage 2 crower you wouldn't have any problem but I do not know what type of dome is on the type S piston. Also has your head been decked or milled down?