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Old 11-07-2005, 07:30 PM   #1
76bonanza
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Join Date: Mar 2003
Location: St robert Mo
Posts: 2,001
spark plug suggestions

Getting ready do replace wires and plugs. I have an accell HEI with msd module and accell super coil. built 355 around 330 hp.

I am looking at NGK ugrooves or good ole ac delco. Two question
Which ones do you suggest part (ie acdelco r45) and what gap thinking .45 or so?

I know this is a debatable subject but just need help deciding.

Thanks
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1968 c10
lowered 3" 4"
355/Th400 built by Hatfield racing in joplin MO
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