Originally Posted by
Z28ricer
Another area it does good, typically amps, sometimes HID's, fans, etc dont get tapped in to the stock power wiring, generally they get power wires run seperately, so the current doesnt even go through that fuse.
I have never seen an accessory wired to the alternator post. That's the only connection point that's 'behind' the 75/100A fuse. Wired anywhere else, the accessory pulls through that fuse.
Longfellow: Change the fuse if and only if you've upgraded the "big three" - alt to batt, batt to gnd, eng block to gnd. Otherwise, you're setting yourself up for a fire.