fuel pump pressure?

my mechanical fuel pump on my 63 country sedan 289 stopped pumping but only at tickover for some reason, i am gonig to change it to a electric pump as im also now converting to lpg . does anyone know what pressure pump i need ?
the engine is a stock 289 with 65,000 miles on cllock and is 100% original
thanks in anticipation

 

check your fuel filter

 

A good 6 psi pump at the tank should give you a good 4-5 psi at the needle and seat, that's all you should need for the old stocker.

 

The needle and seat will start to open usualy anything above 8 to 9 psi . If your going to an electric look into useing a fuel pump regulator all depends on your GPH

http://www.magnumforceracing.com/store4/magnaflow/magnaflow_fuel_system_technical_notes.htm

 

Thank you all, ordering tonight a 4-6 psi facet pump and an inline regulator to be safe.