Peter MacPherson wrote:

At what rpm do people see their vacuum pressure drop below an acceptable
level(3.2?).
I also have a standby vac with a low vac pressure red warning light. When I
reduce power
to 1200-1300 rpm the vac pressure drops off and the red light comes on. I
thought in the
past the pressure would hold until around 1000 rpm. Does this seem to be
working properly?

That's about the same as my Maule ('cept I don't have a warning light).

George Patterson
None of us is as dumb as all of us.