Posted by Todd Wilson on Thursday, August 07, 2003 at 11:54PM :
In Reply to: Vacuum Gage Reading posted by Matt Wilson on Thursday, August 07, 2003 at 6:44PM :
In the muscle cars a hotter cam hurts vacuum and readings can be very low. So low that power brakes will not work. I assume the flathead works like the Mopar V8's and wants as much advanced timing as possible for power.
I'd look into carburation and associated areas for a slight vacuum leak.
Todd