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W7 Spark Plug #2801059 07/25/20 04:06 PM 07/25/20 04:06 PM
Joined: Feb 2006 Posts: 501 CEDAR RAPIDS Plymouth340 OP mopar
Plymouth340 OP mopar Joined: Feb 2006 Posts: 501 CEDAR RAPIDS	what plug should i run in my W7 14.9 compression 394 CI motor on 114 race gas? Thanks

Re: W7 Spark Plug [Re: Plymouth340] #2801346 07/26/20 01:44 PM 07/26/20 01:44 PM
Joined: Aug 2003 Posts: 43,180 Bend,OR USA C Cab_Burge I Win
Cab_Burge I Win C Joined: Aug 2003 Posts: 43,180 Bend,OR USA	Does it us ethe 3/4 long body? If so I would try a #8 NGK ( I don't know the current part #, sorry) or Autolite 3932 or a 3910, the 3932 has a retracked gap and the 3910 has the projected gap Mr.Cab Racing and winning with Mopars since 1964. (Old F--t, Huh)

Re: W7 Spark Plug [Re: Cab_Burge] #2801355 07/26/20 02:08 PM 07/26/20 02:08 PM
Joined: Feb 2006 Posts: 501 CEDAR RAPIDS Plymouth340 OP mopar
Plymouth340 OP mopar Joined: Feb 2006 Posts: 501 CEDAR RAPIDS	Originally Posted by Cab_Burge Does it us ethe 3/4 long body? If so I would try a #8 NGK ( I don't know the current part #, sorry) or Autolite 3932 or a 3910, the 3932 has a retracked gap and the 3910 has the projected gap yes .750 body....maybe NGK R5672A8 ?

Re: W7 Spark Plug [Re: Plymouth340] #2801382 07/26/20 03:10 PM 07/26/20 03:10 PM
Joined: Aug 2003 Posts: 43,180 Bend,OR USA C Cab_Burge I Win
Cab_Burge I Win C Joined: Aug 2003 Posts: 43,180 Bend,OR USA	Like I said when NGK changed their part numbers I didn't keep up If that plug has the #8 on the base as the last number it is a #8 If it has a projected gap and clears your pistons try it If it has the retracted gap it will clear so try it also Mr.Cab Racing and winning with Mopars since 1964. (Old F--t, Huh)

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