Confused, is this true?

I was hanging out with a couple of chev's yesterday and was talking about my 5.0. Their cool guys so i dont think they would steer me in the wrong direction. I had them do work on my 97 t/a .. They do good work, the one guy is into fox's so i told him i have a 91 that im going to supercharge. So he went on and told me pretty much everything i already knew. but he stunned me on one thing, about a year ago i spun a the bearing on the origional 5.0 so i pulled a motor out of a 95. It slipped my mind but the 95's dont come with forged pistons. He went on and told me without the proper tuning and air to fuel ratio i run the risk of burning a piston since they are not forged. It all made sence at the time. But if your running low boost should it be a problem? I havent upgraded the fuel system yet but im going to run a 255 fp and anything above 35 lbs injector.

I dont know

Help please

so if i dont get on it will i be okay. i need to take it to the tuners their 45 minutes away from my house.