Just had engine rebuilt with champion heads, and .02 over pistons only because the engine went. I thought I needed a lot of stuff. You really don't. Boost is still set at stock with stock ic and turbo. That rebuild alone made a huge difference.
I plan on going to a 6262 turbo only because I know it's just a matter of time before the stock goes. The stock is a JB and it went well over 100k miles. I'm gonna start bumping up the boost a little but @15psi boost right now traction is an issue with street tires. All this to say I'm satisfied if I stop adding parts now, but I have no car note so part are my note! If I know what I know now I could of saved some money, but I have room to grow now. It's you're money! Treat that buick how it wants to be treated.