What heads are you using on that engine ?
Modern Cylinder Head ported Stealths.
Best upgrade you can make , put a -6 feed line , get a larger orifice nitrous solenoid . Whatever you can do to feed the jet you will pick up . Even at the same jet .
Also I noticed you have grounds separate , I would have both solenoid grounds together
let me re phrase this....
At this point, i would say the best upgrade you could make is to a "flowed" plate Either Induction Solutions Holey Moley or NX RNC billet crossbar. Both plates are very similar. I use the NX plate, but had it flowed. The Holey Moley is a bad A$$ plate and would probably be best thing , as it comes flowed . Both plates are a substantial investment, BUT they are perfect to grow into and you would be way ahead on the tech help that comes with it. Also i am guessing you have no progressive?? eventually your going to hit that wall that it simply doesnt work any more and more HP will just make it harder to hook the car.
Lots of options....but like i said, we all just want that little bit more LOL
