low boost/leaking valve cover gasket

[Joshua C]

Listers,
This evening leaving work I noticed my car only made 1.2 bar where it used 
to easily make 1.9 (I have an MRC ECU installed) so when I finished the 
short drive home I popped the hood and can see clearly that I have a valve 
cover gasket leak which is very new.  Would a leaking gasket affect the 
boost?
Also I have looked in Bentley for valve cover torquing specs and can't find 
them, anyone have any guidance?  Any surprises to expect in the replacement?

On the oil filter banter, I was talking to one of the Army guys at work and 
he told me that they use Mobil 1 in their Hummers and service includes 
changing the filter only and toping off the Mobil 1, I don't recall the 
intervals....me I use Mobil 1 and the black filters every 5k, maybe it could 
go to 15k...but it's cheap insurance.

TIA-
Joshua Cummings
Woods Hole, MA
91 200 avant

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