Fuel pump specs

[1typograph]

I recently purchased a 1986 VG40 Toyota Century, and it has some sporadic dying issues. As soon as I give it more than about 5% throttle, it tries to die unless I let off the gas. I'm guessing it's a fuel pump. Problem is, they discontinued the fuel pump, so what are some aftermarket options? Or, if I could just get the specs of the pump, that'd be perfect