[Dorsh]

Hi Guys,

First, thank you all for sharing your knowledge on this forum. I'm a regular reader on here and only post on here when I've absolutely had it and and need help. Having said that, here is my issue.

Background
I have a 78SC that was sitting for 1.5 years due to a charging issue and a broken rear window (Targa). After getting a window in and replacing the alternator and the battery the charging system is now operating correctly although the car idles at 3000 rpm (cold or hot) and runs good and bad. The car would kick and jerk while cruising but run great under acceleration.

After cleaning the injectors the driving issue was nearly cleared up except the high idle. While looking for more issues - ie vacuum leak, I found the air box split apart where the two halves meet. Naturally, I'm thinking this has to be my issue. Well after spending an afternoon replacing the air box, I'm disappointed to report my car still idles at 3000 rpm! Driving down the road at 4500 rpm - push in the clutch the idle will drop quickly down to around 3700~4000 rpm's then float down to near 3000.

I have seen alot of posts about the AAR and comments saying this can get stuck. I have lubricated this component but have not done the freezer test. Also I've seen comments on the decel valve being faulty - at this time I have not tried anything with this either.

Any suggestions are greatly appreciated.

Thanks guys,
Kurt

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78SC