thanks for the input the main reason i instaled the nitrous was a buddie of bought a 04 cobra and when we first raced all he had was stock numbers while had h/c/i and ls1 edit already installed so althought i didn't murder him in the first race it wasn't very competitive and i won pretty convincingly. and then he went ahead and got pullied and added a exhuast. so not wanting to lose and considering the cam size on my car i couldn't go with compression of a super/turbocharger, and was left with not choice but nitrious. we never raced after that intial race becuase we knew that no matter what happens after every race were gonna mod to get the edge on one another, an:ad so we knew we would end up with unstreetable cars so now we mainly cruise together and pick on rice.