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Topic: Four corner idle adjustment
From: Orange, Ca. United States of America
Registered: Dec 2001
posted 04-19-2003 10:03 AM
Is there any trick to it?
On my 3310, I drilled holes in the primary butterflies to facilitate idle tune, and it worked. Am I likely to need to do the same to a DP? If so, would I drill both primary and secondary butterflies?
You guys are going to get real tired of me asking DP questions
1965 GT coupe, 333ci aluminum headed/solid cammed stroker, four speed, 3.70:1 9"
All Blue Oval, no blue bottle
From: Lyons, IL, USA
Registered: May 99
posted 04-19-2003 10:09 AM
I would not drill anything yet Todd.
Try it our with a 5.5 or 4.5 PV first.
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From: Batesville,MS. , U.S.A.
Registered: Mar 2002
posted 04-19-2003 11:27 AM
Todd, you can also turn the carb upside down and adjust a little more opening in the secondaries with the small set screw in the back if you need a tad more airflow after the PV change. I'd try the PV first though. I will admit to drilling the butterflies in the past, but that little adjustment screw is there if you need it.
69 Mustang Pro ET Drag
70 Mustang retired former footbrake car
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Jerry: Nice but you didn't have to do that, if you ever get it going fast enough at the strip it'll catch fire.
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