Hello, so I have a 2005 L61 and am looking into building and supercharging it. I have already looked into forged rods and pistons, as well as an oil cooler and jets. However I have hit a stump with the tune, I have seen around on some forums that an 07+ head can go on my base and swapping the ecu and harness will give me the capability to tune. However I am still not certain what needs changed for the head swap other than a cam sensor and possibly coils.
What else do I need to do to get to my goal?
Can my crank handle 6-12 psi of boost?
Do I need injectors?

I have yet to research installing a supercharger so some info on that would be useful as well. I will most likely just put a stock lsj supercharger on it with a zzp stage 2 kit.