EFI Fuel Supply Design

I understand your problem with mounting the fuel pump in the rear of the vehicle. Problem is efi pumps are pushers, not suckers. They are good at creating high pressure, but not at creating the vac. needed to pull fuel thru the line. If the pump is going to stay in the engine compartment you might want to look into an accumulator, similar to the one here http://www.bcbroncos.com/store/index.php?cPath=131_108 so you have a constant supply of fuel. One thing efi does not like is to not have constant fuel and with your set up, unless the tank is sumped, you are bound to suck air into the system when the tank is low. This accumulator will require a low pressure pump in the rear of the vehicle to supply the fuel to it. This is how Ford did there efi systems when they first came out, at least on the Rangers. If you go this route, there will be more equipment to deal with as well as 2 pumps. But it will give the injectors a steady supply of fuel. I swapped an EFI set up into a Ford Ranger I had and used an external pump mounted as close to the pickup in the tank as I could get it. We put 200k on it and it still had the same pump in it, so I would not worry so much about the pump burning up. No nice way to say it, your idea is probably not going to work real well when you step up to injection....might want to contact fastmanefi, I think that is his name here. Rich operates http://www.fastmanefi.com/ and would be a great guy to talk to about this.....