[dsy1]

I have a '71 C20 long bed (also in San Diego). I kept my stock behind-the-seat tank and one aux tank on the driver's side under the front of the bed. To get the high pressure for fuel injection I used an Edelbrock EFI fuel sump (look up Edelbrock 36031 or 36032). I mounted the sump on the radiator core support under the hood on the driver's side (opposite side from the battery). My regular 6psi mechanical fuel pump feeds the sump, the sump contains the high pressure pump to push it up to 50-60. It can run without a return line which saves some plumbing. I am satisfied with it so far. No need to change senders or fuel gauge. Probably about the same price as a new fuel tank and likely less work.