Hi guys I dont post much here but do a lot of reading and trying to learn. I picked up a 78 Hallett last summer with a 460, tunnel ram, and dual holley 600's. It runs good but I was wondering why it would need a mechanical fuel pump AND an electric fuel pump. The holley red electric pump is mounted to the back of the transom right after the T for the two tanks and then feeds the mechanical pump. The reason I ask is the holley pump sounds like it is ready to die and I also noticed my fuel pressure at idle is only 4psi and right at 5psi at wide open throttle. I was thinking of just getting a better electric pump and getting rid of the mechanical, or is there some good reason to keep using both.