Anyone know how much boost a bone stock 5.3 can handle. Also Ive heard all you need to do is change to some nice forged pistons and the bottom end will hold up pretty well, anyone know if this is true. If I change the pistons I was looking to run 12 psi, if I leave it stock I was hoping for 8 maybe 10. Id like to try and stay away from changing the whole rotating assembly just for moneys sake.