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> I'm sure there are lots of TWListees with Lehman 120's & 135's and some of
> them must have vacuum gauges. Perhaps those who are so equipped could
chime
> in with their experience.......
>
Bob,
FWIW I'm pulling 1" through a Racor 500 with a new element at 1800 RPM
with my 135 Lehman. Over 200 hours it went to 3".
Are you measuring at an idle? At idle speed the needle is barely off the
zero mark. Check your fuel vacum at normal cruise speed.
Good luck
Walt Konieczko
Annie Sez Too 34 Marine Trader
Lanoka Harbor, NJ