Questions about trickflow stage 2 cam.....(blown motor, clear pistons??)

No one can tell you for certain if a particular cam is gonna clear in your motor. They can tell you what happened in theirs. But each motor is different dimensionally when you start measuring things in hundredths and thousandths.

As far as how it will work with a supercharger -- generally, the boost likes a cam that doesn't have too much overlap -- so you don't blow the first bit of boost right out the still-open exhaust valve. That TFS2 cam has a lot more overlap than the stock cam does. With the 2.02 valves even in the twisted configuration, I doubt you're gonna have sufficient clearance with the stage 2 cam.

If you buy your cam from a reputable vendor - they should take it back in exchange for something milder if you put it in and clearance isn't there - provided it's undamaged/un-run.