Hemi won't fire
This is a aftermarket piece that fits the stock fuel rails and provides a 1/8th npt female port you can screw in a pressure gage or electrical sensor. Since you have the stock pump you should be able to hear it run for a few seconds after the engine stops cranking. If it cranks, then tells you the neutral/park wire is connected. The pump originally was powered by the ASD relay which also powers the coils and injectors. I don't recommend squirting gas into the TB.
This is a aftermarket piece that fits the stock fuel rails and provides a 1/8th npt female port you can screw in a pressure gage or electrical sensor. Since you have the stock pump you should be able to hear it run for a few seconds after the engine stops cranking. If it cranks, then tells you the neutral/park wire is connected. The pump originally was powered by the ASD relay which also powers the coils and injectors. I don't recommend squirting gas into the TB.