Spark Advance Calibration Dec 8, 2020 1:53:05 GMT Quote Select PostDeselect PostLink to PostMemberGive GiftBack to Top Post by DaveBeddows on Dec 8, 2020 1:53:05 GMT Thanks to Bill Rogers who gave permission to link directly to his webpage www.isettadoc.comClick here for a 3 page PDF Bill Rogers created on calibrating the spark advance.