Small Block Oil Pick Up Tube Question

Can anyone provide information on what modifications have been used to allow a greater flow of oil into the oil pump? I have applied several oiling system modifications thanks to the great write up by Guitar Jones but I have a mid sump pan in a passenger car so there is no room for the pick up tubes from Canton or Champ with the tube going into the bottom plate of the pump. I have a Moroso and a Miodon pickup tube which are suppose to be high capacity but they both neck down to a small diameter to fit the 3/8 NPT pump threading. I can drill them to 7/16" but that is still the bottleneck in the system when everything else is opened to 1/2". Has anyone got some creative ideas to get a proper amount of oil into the pump other than drilling the pump and brazing a 1/2"ID tube in?