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Old 08-14-2003, 11:33 PM
roanie roanie is offline
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390 plug gap & firing order

(I did a few searches and couldn't find the info although I am sure it is in here somewhere.)

Can someone please tell me the spark plug gap and firing order for a 1975 390?

Just bought a 1975 F-250 4X4 390

Thanks,
roanie

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Old 08-15-2003, 12:30 AM
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460 Crew 460 Crew is offline
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390 plug gap & firing order

.044 and counterclockwise at 15426378
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1970 F250 Highboy Crewcab 460 C6 divorced 205(under construction)...12v6Bt, ZF6, keeping divorced 205. http://www.fordification.com/forum/v...p?f=22&t=17179
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Old 08-15-2003, 01:44 AM
mypa'struck mypa'struck is offline
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390 plug gap & firing order

I am curious, would a smaller gap produce a colder spark? Mine are gapped at .035. Old chevy habits die hard I guess.
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Old 08-15-2003, 08:00 PM
roanie roanie is offline
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390 plug gap & firing order

Thank You!
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Old 08-15-2003, 08:00 PM
 
 
 
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