turbo leak??
 

i got a 87 supra, auto. When i drive it makes a air leaking noise on the right side of the car(near the turbo maybe?) and this car doesnt have much power. or could it be a bad blow off valve?

Prolly not a bad BOV more like you have a hose off somewhere. Follow the hoses from the turbo to the intake and look for cracks and such. Also make sure all of your hoses are tight where they connect this could cause it. The hissing is a boost leak you just got to find it. And yes the turbo is on the passenger side of the car just follow it from your airbox to the 3000 pipe and hope for the best.