http://store.summitracing.com/egnsea...12&D=%2D113312
http://store.summitracing.com/egnsea...40&D=%2D113040
Yes one can index with the heads on, simply mark the location of the electrode on the top side of the plug and add washers until it lines up centered..
Last edited by Dbl G; 01-25-2007 at 09:36 PM..
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