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Author Topic: 347 stroker spark plug gap kuku93 ¯ Member # 14014 posted                              Does anyone know what spark gap should be for a 347stroker Posts: 154 | Registered: Apr 2015  |  : Martinna ¯ Member # 12493 posted                           It's not that critical. Higher compression and boosted applications need a smaller gap. Put on some good copper plugs like NGK, Autolite, Motorcraft around .040". Posts: 1093 | From: City | Registered: Oct 2012  |  : 1fastmach1 ¯ Member # 10137 posted                              boost/na / or nitrous -------------------- REDLINE MOTORSPORTS CC EST 2011 1993 CHP sold 2004 mach 1 408 Windsor n20 fed R.I.P. JORGE GUTIERREZ JR 6/13/1982- 11/05/2013 Posts: 2592 | From: clawwwitter to 7th st | Registered: Jul 2010  |  : kuku93 ¯ Member # 14014 posted                              It's N/A.. 9.5 compression. Posts: 154 | Registered: Apr 2015  |  : Martinna ¯ Member # 12493 posted                           Stock gap and copper plugs are good for a N/A 9.5:1 compression motor. Posts: 1093 | From: City | Registered: Oct 2012  |  : kuku93 ¯ Member # 14014 posted                              Thank you Posts: 154 | Registered: Apr 2015  |  :

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