[trunks11]

You can ran boost through your engine just not too much because it's not originally made for it. You can turbo any car, it's just a matter of destroying it at too high of a power level. The cars turboed from the factory (4g63) have stronger rods and pistons designed for boost. Your engine (420a) was not designed for a turbo so has weaker internal components.

Your power steering was deleted so there's no pump or belt I presume? You'll need to bolt it back on and connect it to the hoses to get back power steer.

Seriously, get on dsmtuners and 2gnt and just start reading. That's how I got started and I'm still learning all the time.

Edit: You can't turn the pump pulley or the steering wheel at all?