this dude told me i could increase my horsepower if i simply pull off this vacum tube he showed me near the back of the hood, he explained that you need it connected to pass fuel emisions. all it was was this tiny lil tube conected to a device of some sort, im no mr. rocketscientist; is this true? yall are big help...

 

Pics would help explain what exactly you are trying to do.....

 

it will probly just make your car idle shitty.
punch that guy in the face.