boost guage questions

[luke]

This is a multi-part message in MIME format.
--
[ Picked text/plain from multipart/alternative ]
i just installed a boost gauge in my 90tq (kh, mac-07a) and had some intres=
ting results... the guage reads -20psi (vacuum) at idle. when i rev it up a=
 bit it goes around -10 then after 3000 rpm when i juice it the guage reads=
 about +5 psi (boost). i didnt think it was supposed to read like that... w=
hats it supposed to look like?

thanks everyone
luke 90tq
--