I have to agree on letting someone else educate you if they offer. Whether the Nitrous Oxide does right or goes wrong, both can be learning curves.

 

make sure you have a COMPLETELY free FLOWING exhaust and a cold air intake even it is home made CAI.....and dont shoot a shot over 150hp on the stock hemi, it will blow TRUST ME and if when you add nitrous you need colder plugs so for ever 50hp you need a step colder. So

50= 1 step colder
100= 2 steps colder
125 = 2 steps colder

and for the 150 you need to go 3 steps colder if you can find a plug its not cheap though

and make sure you run premium gas (preferablly 110 octane) and make SURE YOU HAVE YOUR nitrous and fuel PILLS CORRECT