Fuel pump GPH??

hey guys just want to see what fuel pump gph you would recommend suitable for a
street 355, solid cam, th350, 850cfm carb, dead head reg...3/8 fuel lines to be fitted.

theres a few various types of pumps out there as you know, i have been told to use many different pumps from various retailers and suppliers but i need some other suggestions or definate answers to clarify the confusion.
So far ive been suggested holley blue, holley black, carter black, aeroflow ect ect

Thanks for the help