Is it easier to just find a gas tank from a carbed 3rd gen rather than getting a tank from an EFI setup to work? I can get a free gas tank but it was on an EFI setup with electric fuel pump. I'll be running a carb with manual fuel pump.

Thanks.

 

Why not use the electric? If you dont want to, you can use the electric tank, just need a pickup I believe. Id personally use the electric pump and put a AFPR on it and drop the manual fuel pump.

 

i'm limited on funds and I already have the manual fuel pump setup. Why do you recommend the electric pump over the manual, aside from being able to adjust fuel pressure later on.

 

Pumps push better than they suck (although you might say some pumps really suck... ).

An electric pusher back at/in the tank, with a mechanical at the engine is an age-old proven combination.

 

Ok, so install an electric pump in the tank and feed it to the mechanical then? Do i still need a regulator or will the mechanical act as the regulator?

 

If you use a stock-style return fuel pump, then in theory you could get by without a regulator. However, I haven't tried it, and have only heard it mentioned a few times (mostly by me, and typically lustily flamed when I do).

A return-style reg after the mechanical is the "right" way to do it.

 

well, its the "stock" fuel pump for the motor, so i dont think it has a return line. The pump has 1 threaded female connector which i assume is for the fuel in, and two male connectors which look like a vacuum hose would go there, which I assume go to the carb. Ok, so lets assume i need to use a regulator, which one do you recommend? Are there any diagrams for this type of setup that i can reference to?

 

Mallory 4309 is the typical recommendation (Summit p/n MAA-4309, $74.88). Hooking it up isn't hard - inlet = supply from the pump, outlet = line to carb, return goes to the return line.

An alternative is a less expensive, dead-head type regulator on the mechanical outlet, tee'd with a return line with a needle valve in it. You have to adjust the regulator with the return shut off, then open the return until pressure drops then close it down slightly, then make full-power runs watching the fuel pressure, adjusting the needle valve down until 6 psi is maintained under all conditions. Not quite as good, but it will do.

 

Ok, i bought the regulator today, and i'm getting a gas tank for free, i just hope it has a pump in it, at least one that works.