Unfortunately mods do not add up like that, a cai by itself may give you 30 peak hp more and a pulley may give you 40 peak hp on its own but stacking mods like that does not work. You may be getting a total of 50 or 55hp max on top of your stock hp numbers. Do some research online and on some other forums and you will see this to be oh so true. If only cars were that efficient lol.