Factory ammeter

I've built kits for factory hemi E bodies, and those guys are generally "picky" about what they put on their cars.

If you are building a 100 point show car... keep it all factory. If not, JMO, use products that improve performance in many areas that can be easily hidden. If you have a battery tray in an A body, the relays hide underneath and the wiring hides extremely easily within the OEM harness and tabs.