I have a carbed car with an external fuel pump. I bought the Painless fuel pump relay which draws the power for the pump directly from the battery - or in my case the starter relay. (A circuit breaker is included) I then used the Gry & Wht 906 (from the fan fuse) to power the relay. I also bought the Painless Fan relay so the 906 wire powers both relays. I had to buy some extra wire to run back to the pump, but I just bundled it in with the other tail wires