i just got a used cam for my 8ba engine. it was advertised as a merc. 8cm. the markings are fomoco and c45 on one end and EA: on the other, the colon after EA is a larger indention. is this a merc cam? i thought it should be marked 8cm.
Check the lift, it easy just use a caliper. Zero out the base circle and then the lobe will tell you the lift. .339 is either an EAB or EAC. both are good cams. only the duration wold tell.