Amp Meter ByPass
Hi,
I too am puzzled why people put such big alternators on an older car. 140 amps is a lot of current to deal with. The "fleet bypass" modification was never intended to deal with these kinds of currents and the ammeter certainly can't. To install his kind of alternator safely you will want to run a new wire of something like #4 gauge from the alternator output stud directly to the positive post connection on the battery. This new wire should be fuse protected with a fusible link or fuse rated for the alternator output. Next, the original alternator output wire should be clipped off at the bulk head connector and the original ammeter wiring removed except for the black wire from the ammeter to the splice joint connection. This wire should be connected though the original fusible link or better yet a new 50 amp Maxi-Fuse blade type fuse to the battery stud on the starter relay. Any connections to make use of all that current should be connected directly to the positive battery post.