If your distributor advance mechanism is rusted or frozen up the
centrifugal/vacuum advance would not occur and it would run better at
speed the higher the idle setting. My car runs at 30degrees advance at
4000 RPM with an idle setting of 10 (stock 948, My vacuum advance is
broken). Put your timing light on it and rev it up and see if the
advance mechanism is working properly it should advance as RPM
increases. Otherwise you are losing out on power and fuel economy.
Regards,
Peter.
>From: Chuck Ciaffone <chuckc@ibm.net>
>
>Mostly it runs better on the road "at (laugh) speed" if I
>set the advance further ahead than the 10 degrees mark.
>
>chuck
>
>--
>=====================================================
>
>chuck ciaffone chuckc@ibm.net
>
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