I am original owner of 1978 FJ40. Replaced the leaking mechanical fuel pump with a Toyota mechanical fuel pump. It does not consistently pump fuel to the factory carb. I can be driving for a few days, week or month and then it dies and will not start up until it sets for at least 6 hours. Not sure why this happens. Thinking of changing to an electric fuel pump. I have a Carter High Performance electric fuel pump md P4594. It puts out 7 psi. Is 7 psi too strong for the factory carb? Will it work for my FJ40? Greg