Ok i got alot of questions please help me, ok i have a 2000 v6 3.8l camaro i am swaping the engines with a 5.7l lt1 v8 my questions are did they not make a 5.7l for the year 2000 and i want to make alot of changes to the engine like supercharging it what should i do about the computer and how it works?

LT1 was made late '60's to very early '70's, Gen I SBC.
LT-1 was made '93-'87, Gen II, reverse coolant flow, Optispark dist on front of engine. PCM controlled and will need a new program.

Supercharging a Gen II will be extremely difficult as I don't think anybody made anything for it other than aftermarket intake system, or upper end, by Edelbrock.

Other professional engine builders here might enlighten your desires.

Going from a 3.8L V6 to V8 will be alot of work and foresight in the parts needed. Good luck. Blue wrench & MIG welder can make anything fit together.

Do yourself a favor and start w/ a car w/ the engine in it that you want to hop up!

I mention this b/c the little-bitty, nit-picking details may over whelm you?

pdq67