i have a 91 tpi motor from a z28 in my 92 chevy truck, has been gon through, .40 over bigger cam-comp cam 212-218, 487-495, 264-270, comp cams 1.52 rollers, 24lbs, edelbrock base, ported slps, bbk52mm, ported plenum, i bought a used 15lb nx setup, with a heater, purge valve, ect, it came with the shark nozzle, well i dont want to put a hole in my nice ported plenum, could i use a nos plate and run it that way? or what is the best way to do it? also what shot should i run, 35-150? i aslo have a b&m 2200 hole shot and i need to know if im goin to brake it with running nitrous? should i install i window switch so that it wont come on tell like 2500 then shut off at like 5000? what do you all think?