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R44 or R45S plugs??
Hi guys! My manual recommends R44 plugs for the 307 in my 69 C20. I'm running stock ignition with points. The parts store sold me R45S plugs for it. Is there any issue with that, or should I go back and get the 44? Thanks so much as always for your help!
Wes
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Found Grandpa's old '69 Chevy C-20 - It'll never leave the family again.
"For just a little more, you can do it yourself!"
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