Most street cars should not run two pumps and heavy draw ignitions anyway.
A stock 60 amp with one electric fuel pump, heated seats and lights has never let me down..Oh... two cooling fans as well.
The other thing I do not understand is why you all want to use an amp guage as apposed to a Volt meter. The ampmeter like Rick says carries all the current through your dash.......definite fire hazard..I have also seen many burnt wires because of this antiquated guage. The volt meter gives you an exact read on your battery at all times.
