well the shot that i run is supposed to add an equal number of horsepower. so i should have 55 HP more then the stock civic. You technically can boost as high as you want but you will blow up your engine. my kit came with i believe 55 65 and 75 shot jets. you need to do some modifications when going over the 55 shot though. adjusting timing and what not.

I cant really tell ya what kinda cars you should be beating. I havent really raced anyone. You should be beating all the stock Si's I would assume, as well as all other stock civics. OC should be able to tell ya alot more about waht cars you should whoop on. Hes been racing alot longer then me thats for sure