listen carefully..
if you use stock spark plugs with even the LEAST amount of nitrous, you will detonate a nd possibly blow your engine apart or melt a valve or piston.
also, a dry 125 shot is TOO MUCH for stock injectors unless youve got a monster high volume/pressure fuel pump... dont risk it, just use the 75 shot or 100 shot to be safe before you upgrade to larger injectors and matching MAF sensor.
follow these steps to keep your engine alive.
1. change to 1 stage colder spark plugs for anything under 100 hp.
2. change your fuel filter, put a new one on, it usually frees up a few psi of fuel pressure due to less restriction from dirt and **** that builds up in stock filters after lots of miles..
3. back off some timing, at least, set it to 10 degreez BTDC at idle with the spout connector removed.... (dont forget to put the spout connector back on before you drive off ) hehee
4. do not miss a shift with that dry kit, or you'll be in trouble.
5. dont spray out of the hole on street tires, you'll just spin and look really stupid while a ricer smokes your *****.
any other questions. read my website, its all about the NITROUS !!!
http://www.pcrepairworld.com/nitrousworld