electric fuel pump...where to mount

[absintheisfun]

I have a carburated SBC 350 on an old C10. It currently has the gas tank in the cab, and I am relocating it to under the bed. I am routing 3/8" rubber gas line along the frame rail.

Does the GPH matter? It's a mild 350 (I didn't build it so I don't really know the specs, but I don't think it is overly powerful...

Should I mount it closer to the tank, or the carb?

[absintheisfun]

anyone have any input on this one?

-thanks

[PRRC]

As close to the tank as possible. You wont have an issue with GPH. Although depending on the pump you choose you may need to run a regulator,it should go as close to the carb as you can get it.
Tim

[b-man]

One of the better inexpensive electric pumps is the Carter P4070, it puts out 4 to 6 psi and needs no regulator. Very quiet and long-lasting, I had one feeding a stock Pontiac 455 and ran it over 30K miles over 5 years. Mounted as low as possible and close to the fuel tank of course.

Don't run rubber line along the frame. You're asking for trouble with that much rubber fuel hose.

Run aluminum or steel hard line and use rubber only where you need to make flexible connections. Use as little rubber line as possible. If you've ever raced on a dragstrip the tech inspectors only want to see a total of 12" of rubber line on the whole car.

The reason for using very little rubber line is for safety and durability. Your C10 came from the factory with most of the fuel system made of steel hard line with just a couple of short pieces of rubber hose.

[absintheisfun]

I'll use the stock hard line under the cab...its the 2-3 feet under the bed that I'm using the rubber line for. I plan on getting some hard lines from an old Blazer once I get it back together. (wife imposed deadlines!)

It currently has a Mr. Gasket electric fuel pump, but when I floor the gas pedal, it sputters a bit. I thought that an improved fuel pump would make a difference.

Thanks for the help!

[b-man]

Run out to your local parts store and buy a 3 foot length of 3/8" steel brake line. Cut the fittings on the ends off and hand-bend it carefully where you don't need a tight bend, use a tubing bender if you need to and use that instead of 3 feet of rubber hose.

Just use a couple of short sections of rubber hose to splice the steel line into the circuit.

You'll still make the deadline, and have a safer installation. It might end up being a while before you install that Blazer fuel line, you know how it goes with these things sometimes.

[Procharmo]

Have you checked your timing and A/F ratio. You may not need a new pump!!