dude, you should eat him alive...I was in a stock '04 MACH 1 this weekend and we smoked a stock(as far as I know) SRT-4. I realize that you only have 2 cams, but with the head work and intake work you should hold your own easily. Im thinking that a stock GT w/ 4.10s would pull on an SRT-4. Dont let forced induction scare you. Most of the best cars Iv seen were all motor N/A... Just be sure your tires are warm and sticky for a good launch. I assume you always run 93 octane? If not I would start...Seems to work great in my buddies MACH.
Good Luck smoking him, get it on camera...
BTW dont use the n2o unless you have to, I wouldnt think you would need it. We really smoked that SRT-4 this weekend, pulled like 2 bus lengths...