Engine Vacuum vs RPM?
Mine idles around 8.5 inches of vacuum, but pulls about 17 inches when cruising at low throttle opening. High overlap cams don't create good vacuum at idle, but it makes less difference at higher rpm.
Mine idles around 8.5 inches of vacuum, but pulls about 17 inches when cruising at low throttle opening. High overlap cams don't create good vacuum at idle, but it makes less difference at higher rpm.
