Vacuum reading at idle?

[PKRWUD]

Originally posted by 93GTDIN
Chris,

It seems as though I have one of the problems you described in your vacuum diagnosis thread:

" A low but steady reading between 10" and 15" would be caused by retarded ignition or valve timing, or low compression."
-This vacuum reading is taken off of the brake booster
My timing is set to 18*
Compression is 150 PSI cold fairly consistent all cylinders
not sure on valve timing.

If when I set my cam timing I kind of half assed the whole procedure, and did not perfectly line up the timing gear w/ TDC, could this be causing my problem.

It may also be important to mention I have 18-20 inches mercury vacuum cruising on the highway.

I would be suspicious of your valve timing, but everything else looks good. Perhaps you have a leak in your booster. How are your brakes?