i have to be realistic and use the steps. you really love the stack injection.i knew one guy that ran them couldnt figure them out he went to a hat and ran flawless 8.30's at 161 at 2400 lb 67 camaro.i don't say that to get you pissed it's the only time i ever see stacks.i see you can get systems pretty good pricing what whould you say they have to offer over the hat or the terminator.i do like the look of the un even stack set up. jeff