johnnydddddddd

I have been told a few times that if you run the right superchager set up you can get near 50% more horsepower. then i read all this people talking about how much power they got on their maxima's and it is no where near that. i even saw a guy who was running smaller pulleys and wasn't near 50%. why is this? is it because they are not running a very good set up or do vortechs suck ( i did here that vortechs can make you run lean and that could be fixed with bigger injectors.) could it just be to much parasitic drag ( and if so will under drive pulleys fix that)or is the unit just to small.and finally if the 50% gain is true then can the maxima's transmission handle that extra power? ( i know that many other nissan's such as the 240sx can handle that kind of power)