I just bought a used NOS 5122 Dry Kit from a friend and was ready to install it, but someone said I should buy the wet conversion kit for around $115.00. Should I do this or has anyone done this with the SR20DE? Sorry if this seems like a stupid question, but I never recall seeing anyone with this. Here is my current setup:
JDM 10:1 motor, Bored MAF, UR 2 Pulley, Lightweight flywheel, CAI, Hotshot header, 2.5" cat back exhaust, CM Stage 3 clutch, Bored MAF, Mild port and polish.
Also, what is the biggest shot recommended for both wet and dry? I am hoping at least 70 hp.

I would only use a dry system with a turbo car if the computer knew when you were adding nitrous.

Too many things can happen with turbo and dry nitrous kits. So I would go with your friend's advice and convert your kit over to a wet manifold system. BTW I would look at NX's conversion kit.