[C2] 1963 split window idle issues
Le Mans Master
Joined: Sep 2008
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From: Lake Minnetonka, Mn
2018 C1 of Year Finalist
Le Mans Master
Joined: Oct 2002
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From: Las Vegas - Just stop perpetuating myths please.
Someone misread my post. I mentioned to try ported vacuum (if the OP is currently connected to manifold vacuum now) - not switch from ported to manifold. And yes it makes a difference as that's one of it's functions being a port above the throttle blades is to delay the ignition advance (I don't how you could possibly say it doesn't make a difference).
Safety Car
Joined: May 2014
Posts: 3,783
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Someone misread my post. I mentioned to try ported vacuum (if the OP is currently connected to manifold vacuum now) - not switch from ported to manifold. And yes it makes a difference as that's one of it's functions being a port above the throttle blades is to delay the ignition advance (I don't how you could possibly say it doesn't make a difference).
With the low in gear vacuum reported there is not enough signal for the carburetor calibrations. The O/P could test by using a rag over the carburetor throat to see if reducing the air making the mixture richer gets him in the right direction.
Thread Starter
Burning Brakes
Joined: Feb 2011
Posts: 829
Likes: 70
Thanks foe sharing your story. You sure wouldn't guess a PCV valve could cause that kind of problem. Good to know. I finally solved my issue. The engine builder installed a cam with too much duration and I didn't pull enough vacuum for the power glide. I know have 19 inches of vacuum and the car runs nice and smooth in gear at idle.
Team Owner
Joined: Nov 2005
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From: Beach & High Desert Southern California
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