I know I keep asking about nitrous kits, but my last post only told me not to buy any NOS kits. I want between 100 and 150 HP (check sig for my present combo) and have been told very little about all of the other kit options. I'm looking in Summit right now and see the Nitrous Works kit for $513, and they have the ZEX kit for $509.95. No Nitrous Express kits in the magazine. The Nitrous Works kit says it can spray between 100-175 HP, while the ZEX kit only claims 55-75?? Is the Nitrous Works kit safe for a non built up stock 95k mile short block?? Is it the best of the 3 kits i listed in the subject heading?? i do NOT want to f*** up my motor, can i bolt on this nitrous works kit with no problems if i only spray 100 and 125 shots?? is the adjustability good with the kit?? what other accessories should i buy if i was to buy this kit? (heater, purge kit, gauge, fuel pumps) thanks for reading and helping!!