Questions about my Mechanical Fuel Pump

Guys, I've been researching all week and I would like some help picking a fuel pump and fuel system that will work with my car.

I had the engine at the dyno and they did a fuel pump test with my stock pump. It was not impressive and they suggested I upgrade to a better pump. Im currently using this pump.

http://www.summitracing.com/parts/crt-m6866/overview/year/1971/make/dodge/model/dart

Here is my test results. The pump just doesnt have enough to keep up @ WOT.

View attachment IMG_20160325_183706538.jpg

I understand for normal everyday driving my pump would be sufficient, but I want to make sure that the pump is sized correctly for what ever it is I plan on doing.

So I've been researching mechanical and electric. Im torn between which route I should go.

I have a 5/16" sending unit and 5/16" steel line currently.

I have no problem upgrading whatever I need to, I just want to hear some suggestions.