Fuel Pump Capacity

[Dusty]

Does anyone know if an"In Tank" fuel pump for an S-10 will keep up with a Carburated street use 350?  I've been thinking of just leaving the "In Tank" pump connected, and feeding the mechanical pump with it, just in case.  Maybe the Mechanical pump won't be needed.  I purchased a brand new tank and was wondering whether to leave the pump in it or just put in a filter and fuel line and use the mechanical pump.  When you buy a new sending unit, it comes with Pump, filter, and sending unit.  Anyone have any thoughts on this?

Thanks

[enjenjo]

Yes, but you need a pressure regulator, that TBI pump puts out way to much pressure, like 50 psi. Unless you get a pump for a carbureted 4.3, it will have the right pressure range.

[Dusty]

Frank, Does the TBI pump kick off when it reaches a set pressure?  If not, could I put in a return line, and loop it back to the tank, and let the Carb feed off of the loop, and eliminate the regulator?

[enjenjo]

No, it runs all the time. The fuel moving through the pump keeps it from overheating. It has a return line on it already. You have to use a regulator, it flat puts out too much pressure. I believe Holley has a regulator with return line capability.