I know Im not the only guy that does this, and with conventional spray bars I could see a problem, the only plate Id recomend is the Zex perimeter system, otherwise you need fogger nozzles. I use annular.
At lower power levels, I wouldnt bother, I mentioned the zex plate because It has worked for me, I rarely use alky unless its a big nitrous application 350-400+ I find alky is easy on parts at this level and there is also less of a chance for detonation. simply put the engine takes the nitrous better. or if you will less alum on the plugs. Now If you hold the button for a 1/4 mile in a slow car for 10 sec + yes Id bet you'll have problems. a 4 sec pass in the 1/8 now thats a differnt story. Besides I never said exactly that I used alky only I might mix another type fuel with it. but that one you'll have to determine on your own.