depeneding on the shot. of he is doing a 50 or 75 shot he doesnt need to rebuld the engine, and so i make the fact clear i never said he needed to change the cam, i said it would be to his benifit. and yes improper use will blow a engine, but so will not having to correct n2o to fuel ratio, or hitting the n2o when you are not at wide open throttle. but you can safely fun a smaller shot if done properly, with little to no problems

 

Heres a link im pretty sure this kit was run on STOCK internals sounds like a good deal to if anything you should look into doing a search on this site there more about high performance and have allot of people thats done allot of wild stuff if you can think of it they have talked about it.

http://www.ls1truck.com/forums/sale-...-my-hands.html

 

looks like a decent deal, just don't have enough info on the subject yet.