Twice now, using the 9-key BBM gear (426 Hemi 6 months ago and a 440 yesterday), Those dudes have the "advance" "retard" markings backwards. Setting Intake centerline was a gong-show. Suspecting this, doing the 440 was a YUP backwards conformation. FYI, the crank gear can be bought separately to be used with the cheaper combo, as long as it is the ".250 inch" link chain/gear set-up.















