Problems with F4 engine -
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Unread 04-09-2013, 08:21 AM   #1
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Join Date: Mar 2011
Location: Santa Rosa, CA
Posts: 5
Problems with F4 engine

I rebuilt the F4 engine for my 67 Jeepster convertible. It idles fine. At speed it is smooth for a few seconds then sputters, stalls and slows down then it regains speed, runs smoothly for a little while then repeats. Anyone have any idea what may be the problem?

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