I had a huge response and it wouldn't load so it was all deleted.... OH well
TO answer the questions:
The catch can, I HIGHLY recommend using any type of breather. On the BOSS we did, we just put K&N breather's on the valve cover. Others, we have put breather style catch cans on it. On my car, I have the UPR one but i kept one side open. I would not recycle anything though.
With the turbo size, The 62s that were picked are dead-on nuts for this kit. Hellion is using a Precision slim cut turbo for fitment reasons. These turbo;s also spool at 2500-2700rpms. Put it this way, this kit on 6psi comes alive faster and stronger then my 17psi single kit. It's amazing how quick this kit spools.
Well, that clears any doubts man... 6266s it is haha