74 2.7 CIS Idle RPM Question

[fuch'd]

I have a question regarding proper RPM at idle for a 2.7 CIS car. My '74 runs very well, but seems to maintain a higher RPM at idle than it should.

This is currently around 1100 RPM when fully warmed. Can anyone advise the correct RPM (at idle) for this year/combination?

TIA.

[Charles Freeborn]

Mine settles in (when warm) at about 950-1k or so. Depends on weather, stage of the moon, octane, or any number of other non-digital factors.

[4sd911]

Have you tried to adjust the idle by turning the idle screw?

[redstrosekNic]

The stickers under the engine lid should tell you, but my '75 with CIS idles at about 950. I'm pretty sure the stickers say between 900-1000ish. If the idle screw is unresponsive, look for vacuum leaks. 1100 is too high.