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JD A SPARK PLUG

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Matt F.

New User
47 JD A BORED AND STROKED. JOHN DEERE CYL HEAD PORTED AND POLISHED. MSD box with electronic ign. Compression releases. Have been running NGK A7 Which is a AC C88 I think. What are you guys running for plugs Thanks alot Matt
 
What gas and octane are you running. Currently using VP c16. I do not know compression off hand. But has alot of cranking compression. 116 MAYBE A LITTLE MUCH?
 
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