I know 2jzgete over built motor. It has forged crank,pistons and rods. Now I have going to UTI(Universal Technical Insitute) which one best automotive schools. I coming up to about two years and close graduating. Hopefully I will work for lexus or toyota. But that besides point right now I am in class called hot rods. I learning in detail alot about 350 chevys and various domestic small/big blocks. I relate what I learn to supras. Now we got interesting subject about piston ring end gap when comes to boost or nitrous cars. Now need bigger end gap compared to stock. Now also find need different end gap for boost level. So say you have turbo running at 8psi and your piston ring gap is at .002 now you up to the boost to16 psi. Well hear lies the quest the teacher says you need to change out piston rings with bigger gap to compensate for boost. But what about 2jzgte. How much power can the stock motor take and I mean stock motor with the same pistons,cranks, rods and piston rings. I know the stock twins can handle 400 or so but what if upgrade to big single turbo how much boost/ power could stock motor handle? Cause if don't have change piston rings for boost then 2jzgte had place piston rings with gap well over what is need in stock form.