I have an alternator that came with the 66 Coronet we bought. Not sure if it goes with the car or if they just threw it in the trunk to get rid of it. It appears that the part# is 2095191. On the back of the casing it has the number 49 a couple spaces then a 6. In the same spot right below that is the number 20938 or 20988 not sure. What could this be used on? How many amps? Could I use it on a 66 Hemi engine? Thanks.