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Old 08-08-2013, 12:24 AM   #1
Straight six
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Join Date: Aug 2012
Location: Newington ct
Posts: 177
Timing ?

I have a new crt performace hei. Also a edelbrock 1404 on a 78 inline 250. The issue is its deiseling for like 20 seconds after shut off and then one loud backfire like a cannon. Not sure how to handle this is it timing or the idle mixture on carb?
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