How to set vacuum advance on older cars Manifold Vs Ported Vacuum
Port vs Manifold Vacuum | Vintage Mustang Forums Tuning how to set vacuum advance on older cars. Fine Engine Tuning With A Vacuum Gauge 2:30 error - I should have said 20 in Hg or so. Was reading the meter incorrectly while driving. I don't think a standard V8 can And again, PORTED vacuum advance from the factory. 🙄😅 ...