well, the forged internals wont hurt if he is going to spray it. and there really is no plate system i like for the LT1's. the inherent design of them i tend to think the rearward cylinders get more nitrous. to just put a wet nozzle in the intake track would be fine though, i ran mine that way for some time, aswell as many others. but there is extra stuff he should buy just to be on the safe side that could really start to total up. like fuel pressure safety switch, bottle heater/push system, timing retard box, nitrous filter, and a couple other things. it gets pricey to do things correctly.