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1981 E-150 Conversion Van Engine Porblem

1K views 1 reply 1 participant last post by  tegger 
#1 ·
I haven't started my 351 engine in 2 yrs until a few days ago. When I put it in gear, it act and sounds like its running on 7 cylinders. Lacks some power, but it idles fine. I haven't run it very long so I don't know what to expect. Could it be a valve problem? It did smoke alittle from the valve cover area before I put it away in the garage afew years back. Thanks
 
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