Just checked my idle vacuum and I'm getting a steady 15"hg....this seems just a little low and I don't think these engines have very bumpy cams or massive valve overlap. When reved she first settles at 16"hg then finally settles at a consistant 15"hg after say 3 seconds, this is using the brake servo take-off.

Other measurements show all ok.

but that 15"hg at idle worries me a little....but she sounds fine, runs fine (bar the cold start!) idle's fine and a very strong and sparkly engine.

anyone else measured their vacuum on a 3.2?