Turbo Whistle

[Thomas J Barbera]

Fellow Audifans,
	I'm having problems with my newly converted turbocharged 4kq.  I
can hear a vacuum leak at boost, and I can't seem to pinpoint the
location of the leak.  It is a whistling sound and occurs when the
accelerator is
pressed and positive boost occurs.  I can hear the whistle increase in
intensity until the accelereator is let off, then the whistle decreases.
I've heard that the rear main seal can leak, but it seams that this occurs
at idle.  The car only whistles during boost.  Any suggestions?  I've
checked the usual hoses, etc.  Could it be my intercooler seals?  I'm
reading almost 5psi of boost on the gauge.  Is this normal?   I'm
hoping the problem is easily fixable.  Any advice would be greatly
appreicated.  

Regards,
Tom B.
'86 4ktq
'87 5ktqa (donor, parting out)