Yes I know its messed up I don’t have the 3.8 turbo in it but that’s how I got it. It was a high school grad pres from my father. My dad owned the car and put a 1988 Camaro, low compression 350 set up for possible turbo.  I’m going to basic training soon and when I get done with that I want to put twin turbo on the 350. The engine is also carburated.  Can anyone give me there opinion on the project and or some advice on how I should go about doing it?  

With twin turbo I'd suggest converting to fuel injection for better performance.

For a turbo engine, you'll need to make sure the bottom end is built up enough to handle the horsepower and boost. This means forged pistons, heavy duty connecting rods, high quality rod bolts, either four-bolt mains or a main girdle to strengthen the bottom end. If you're gonna run a lot of boost I'd also recommend using head studs instead of bolts for better cylinder sealing and strength.  

well i hope to get 550-600 hp. i want a mild cam in it. im ording edelbrock "SB-Chevy 302-400ci Performer Centerbolt Aluminum Cylinder Head
165cc Intake Ports
60cc Combustion Chambers
2.020'' Int/1.600'' Exh Valves
1.460'' Valve Springs, .575'' Max Lift
3/8'' Rocker Studs". do you think that those are ok for  a turbo engine. should i get a forged crank will im at it. or do you think it would be ok with the one it has, stock crank. and what do you recamend single or twin turbo , and what company??! i know a little bit about motors nothing about turbo sep for what they are ment to do, so i want to learn and do it myself. and thank you for your help it is much appreciated!!