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Old 10-08-2013, 08:42 AM   #1
66CHEV
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Join Date: Oct 2007
Location: Western Kentucky
Posts: 85
Cant drive 55 Literaly

Running a 250 with a single barrel rochester carb, points. Did a tune up because of poor performance still having an issue. New distributor cap, points, plugs, vacuum advance. Points are set on 19, timing is set 4 over without advance when advance is plugged back in timing advances to around 12-15 over. Problem is truck will not get above about 45 mph. any thoughts? carb issue maybe??
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