COnverting your wet kit to dry would be a PITA. Besides adding nitrou, a dry kit has a regulated NOS feed to the fuel pressure regulator to up fuel pressure when on (that is what supplements fuel on a "dry kit").
Dry kits suck IMHO. Convert your carb kit to a EFI kit. All you need is a fogger nozzle instead of the plate, and new jets. Cost ya maybe $30-$40. Get the fuel for the fuel solenoid off the fuel pressure test port using a NOS adapter (1/16th npt to #3 an)