boost leak???

i noticed my car was lacking power. and on my boost guage the need stops at around 3.5 4 psi So im guessing it s leaking somewhere. i have no knowledge on this really so info on where to look and how to tell its leak would be helpful thanks.

what car?

any mods to the stock system?

be specific

for starters, check all your vaccuum lines and fittings

85 300zx all stock

I thought they had an inherent problem with the boost gauge line cracking at a cetain point, causing poor reading of boost.

Edit: PM Onyxz32, hes supposedly the local z guru, but i dont know how much he knows about z31’s

thnaks

stock gauges arent exactly accurate…but check over the ic pipes and see if everything is as it should be. 3.5psi as opposed to 10 (guessing) is a pretty big drop to be just a vaccuum line or two. how much of a power loss is there?