If you have the money, get an after market ecu install it and learn it.
When you have learned that, then you can turbo charge that na, with far less possiblity of damage.
Yes you can turbo charge the na with the na pistons, compression will be higher, then a turbo engine, 7.5ish vs. 8.5ish.
Injectors will have to be the frist upgrade if you want to go above 3psi or so.