I installed my own NOS Dry kit and was the easiest power adder known to man! On Bang for the buck it cant be beat! And if you have the self restraint to use ONLY the 75HP jets and to ONLY use it when you are losing..... it wont hurt your motor. Frequent use though will obviously have adverse effects.
I did an air fuel mixture check on it at WOT while on the dyno and you wont have to up the fuel to compensate for the NOS w/ just 75 jets, but any more than that without uping the air fuel and you WILL DO DAMAGE ! The throttle body screen can richen up the mixture for you. that enough to compensate at that amount but anymore and you need to have the computer reprogrammed per Atlanta Chassis Dyno. You get a TRUE real world 75HP from it though! NOS is very accurate in their jet HP results. I was really impressed with their out of the box ease of installation and straight forward instructions too.
Just FYI ...I highly recommend the remote bottle valve. One must always be ready for the ricers!
Happy spraying !
Chekm8