Just got my car back from the mechanic and he says my problem is the vacuum going to the distributor. I'm not getting any fast idle on start up and I have to keep my foot on the gas until the car warms up enough.

Any ideas on what to check other than the lines. I had the black box that controls the three vacuum check valves (or whatever they are called) on the passenger side wall (near the carb) repaired, but I suspect these aren't functioning properly. Are they replaceable ? I don't see them listed in any parts store.

Thanks,

AARON ROCHARD

1976 230.4 W115