Alternator field wires
If you want to use an ammeter with EFI and electric fuel pumps, connect them on the alternator feed.
The way you have it, with the EFI and MSD connected at the battery the ammeter is showing the current to charge the battery and those additional items.
At best, the battery can supply power at 12.8 V.
As soon as the alternator is producing power at a voltage higher than that, it becomes the source of power. Power always flows from the highest voltage source. the ammeter shows that current flow.
You got this.
the meter shows flow through to everything to the left of it.
For the ammeter to show only battery charging, the additional stuff has to be wired somewhere on the alternator side. Like this
That also keeps those additonal loads off the bulkhead connector, except when starting or if the alternator dies.
If you want to use an ammeter with EFI and electric fuel pumps, connect them on the alternator feed.
The way you have it, with the EFI and MSD connected at the battery the ammeter is showing the current to charge the battery and those additional items.
At best, the battery can supply power at 12.8 V.
As soon as the alternator is producing power at a voltage higher than that, it becomes the source of power. Power always flows from the highest voltage source. the ammeter shows that current flow.
You got this.
the meter shows flow through to everything to the left of it.
For the ammeter to show only battery charging, the additional stuff has to be wired somewhere on the alternator side. Like this
That also keeps those additonal loads off the bulkhead connector, except when starting or if the alternator dies.