Scott,
Forgot the most imp information. Normal vac is 20-22 inches steady readings are the goal. Some guages it will be steady vac in the green area. The guage can also be used to set your carb air fuel mixture screws. Highes vac reading on each screw is desired.
T


"Drugs are money, money is power, power is security." - Kent Heiner
Nedrow population 2212
Carbon footprint family of 2/11 tonnes of CO2/yr