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Old 07-31-2009, 09:59 AM   #1
bluemoontruck
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Join Date: Dec 2008
Location: Forest Grove Oregon
Posts: 5
AC on GMC 270

I have a 54 GMC truck 270, headers mild cams, Holly 490, Clifford manifold, HEI. I Installed after market a/c, works great but at idle, with the compressor on it wants to die, or stumble. Going down the road its fine. I've adjusted the carb, but I can't go too high on the idle, any ideas?. thx BMT
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