I did a cam gear mod a long time ago. The basic kit is for a V8 Chevy, it is really simple to do. The adjustment is made with off set bushings. We drilled the cam dowl pin hole to the same size as a V8 Chevy. Then drilled the center hole in the gear to fit the bushing. All of a 30min job
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http://www.villagephotos.com/pubbrowse.asp?folder_id=467869