75shot with a good tune can last a long time.

100shot is definetly possible with a VERY good tune an the added Timing bad fuel system to back it up.

Most people blow their motors with nitrous because they do not install it properly an they half ass it. Nitrous takes the same safety measures as a Turbo needs. Make sure you DO NOT SPRAY it unless your on a dyno getting it tuned, an make sure you spend money on a walbro fuel pump, injectors, and by a NICE nitrous kit, not some used shit .

Goinfasterthanu i believe runs a 125 shot on his stock H22