I'm losing about 4psi due to probably a leak somewhere....I'm relatively stock wit basic mods. How much hp per psi am I losing? And also...what would a stock evo be boostin at 3000rpm WOT?

Ps: off topic but if I cut my antenna will it affect my reception? I wanna cut the entire skinny portion of the antenna off

 

i would check all your vacuum lines & stuff to make sure there are none damaged. a stock evo is supposed to be around 19psi at 3500 rpm wot (full boost) tapering to around 16 or so at redline (7000-7500 rpm).

as far as your antenna goes, just get the Perrin shorty antenna. i have 1, it's less than 1/2 the length of stock w/no loss in radio reception.