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-   -   Idle in Park (https://forums.maxperformanceinc.com/forums/showthread.php?t=873006)

Hanzel 04-06-2024 02:01 PM

Idle in Park
 
Hi guys,

I have ( as long as i remember) quite high in revs ( i guess 700-800 rpm) difference in Park than when i put it in Drive. This makes it hard to align my 2 bbl Rochester. Can someone explain?
Thanks!

'66, 2 sp, 326

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Kenth 04-06-2024 03:39 PM

Idle mixture screws should be adjusted for highest attainable vacuum/rpmīs in gear at 600 rpmīs, choke off, engine at operating temperature.

If that donīt cure the rpm difference in and out of gear, look for binding fast idle cam, vacuum leaks, clogged (lean) idle circuit or too weak springs in distributor.

HTH


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