The Carter 4070 puts out 4-6 psi. I use a Mr. Gasket regulator to lower it to between 2 and 3 psi so as not to overpower the float.
I've been considering these for mounting the pump mount bracket...http://www.essentracomponents.ca/pro...-83-1/10004459. And maybe a smaller set to mount the bracket I made to the underside of the truck.