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09-18-2007, 03:45 PM
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Registered User
Join Date: Jan 2006
Location: mn
Posts: 92
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big block sparks plugs
I have a 68 gmc with a 396 (which i think is original motor) it had r44xls plugs, i put a hei in it was going to change to the r45ts but they dont have a long enough throat or enough threads, should i stay with the 44xls and regap to 45 or is there another plug i should be using thanks Ron
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