At 600 RPM I am pulling 10 lbs
At 600 RPM I am pulling 10 lbs or less of vacuum..I have the timing at 8 degrees BTDC per specs.The idle is not steady.Intake manifold gasgets and carb gaskets were replaced but no change in idle or vacuum.I can get 15 lbs vacuum if idle is increased to 1000 RPM. Any ideas on what would cause low vac and uneven idle??
At 600 RPM I am pulling 10 lbs or less of vacuum..I have the timing at 8 degrees BTDC per specs.The idle is not steady.Intake manifold gasgets and carb gaskets were replaced but no change in idle or vacuum.I can get 15 lbs vacuum if idle is increased to 1000 RPM. Any ideas on what would cause low vac and uneven idle??