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Quadrajet? question [message #363979] Thu, 13 May 2021 22:28 Go to previous message
dsmithy is currently offline  dsmithy   United States
Messages: 210
Registered: July 2012
Location: Lincoln Nebraska
Karma:
Senior Member
Dear people smarter than I,
I'm asking what I hope is a simple question.
I have a five year old or so Quadrajet from Dick Paterson which I trust completely.
After running for quite a while with what I thought might be somewhat retarded timing, I advanced it about 10 degrees. Coach runs better and seems much happier, no pre-ignition, no problems at speed. I suspect my mileage will improve with the lower throttle settings to maintain speed.

BUT...
At idle, it surges slightly, enough to wake the tranny intermittently. Not a big problem, but my previous idle was rock solid.
Do I dare touch the idle, the idle mixture, or am I party to some other issue beyond my (limited) knowledge?
There seems to be many potholes in the road to perfection. Can you help?
Doug


Douglas & Virginia Smith, dsmithy18 at gmail, Lincoln Nebraska, ’73 “Sequoia” since ‘95: "Wanabizo"; Quadrabag/6 wheel disks/3:70 final/Paterson QuadraJet/Thorley’s/Alloy wheels/Sundry other
 
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