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Under the radar
Join Date: May 2007
Location: Fortuna, CA. On the Lost Coast near the Emerald Triangle
Posts: 7,129
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HBTDT. A couple of things.
You may find that the stock '71 dizzy should be recurved so you have something like 7deg advance at idle. Maybe even up to around 10 degrees. However you should limit the total advance to around 30 degrees.
I found that 55 idles were too lean for my carbs. You will probably need 60s or even 65s,
I also think 175 mains are on the rich side, but only way to know is to use an AFM gauge. But that won't cause your problems.
Make sure that your float levels are at the lower limit on the vile. And make sure they are all exactly the same level. This stuff they call gas nowadays will overflow when hot into the idle system.
Do you have the insulators under your intake manifolds?
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Gordon
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'71 911 Coupe 3,0L outlawed
#56 PCA Redwood Region, GGR, NASA, Speed SF
Trackrash's Garage :: My Garage
Last edited by Trackrash; 10-25-2019 at 03:25 PM..
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