you are comparing apples to oranges,these were the carb version of the much improved 200efi with motorola 60 amp electrics,early versions were 5850,then in 03 i started seeing 5900,and 2 of my 04's are 6050, Mercury tweaked the limiters on this generation of the 2.5 ,the carbed versions maintained the 40 amp system thru the end.