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Old 08-15-2007, 09:41 PM   #1
tttjump
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Join Date: Aug 2007
Location: Santa Rosa CA
Posts: 48
Spark plugs and gap after HEI conversion

After doing a HEI conversion on a 73 c20, 454, should I use a different spark plug and should the gap be changed to 60?

Motor is stock except for a mild cam and edelbrock performer carb 750cfm.

Thanks
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