Just got from work, and I'm feeling a little lazy,, so excuse me if my answers aren't clear, or detailed enough.
I have Andy and Dougs fuel pump setup.
It's loud.
Your truck will never starve for fuel.
They are very reliable.
The pumps will probably run high pressure on the '44.
They aren't hard to install.
SS lines look way cool.
Pumps sound awesome.
Extra fuel filter filters fuel before both lift pumps.
I helped my local mechanic shop install the pumps while lots of other stuff was being worked on.
I had DD1's and a PE COMP when this setup was installed.
You have to drill the frame to mount the pusher pump, and spin-on baldwin fuel filter.
My fuel pressure at Muncie was 35PSI on Prime 30 PSI running and about 22-25PSI WOT (My truck had an ECM short and would cut out with prolonged WOT)
No matter how big your injectors get, or how powerfull your box is,, this setup WILL Fuel it!
If you are going to be running less than ~350HP this setup would be overkill,, just relocate the original, or a new Carter Pump next to the fuek tank.
But, anthing over 350 could use this setup.
I ran 457HP/980TQ and have no fueling problems. (A smoking problem, yes

but no lack of fuel)
These pusher pumps,, won't improve your MPG or HP, but will help your truck sustain high HP levels.
I've gone through several lift pumps,, my 1st replacement pump (under warrenty) lasted about 15K, 2nd replacement (under warrenty) lasted 2,500 miles. These pumps have gone for a long while 20K + with 400+ HP.
Mark Kendrick told me I'm killing my injection pump, but so far, no hard starts (under prime I have to crank one or two cranks longer), no problems with hot starts, and no fuel cavitation problems (aerating (sp?) the fuel).
If you have anymore questions feel free to ask, as I don't feel like I covered everything.
Merrick Cummings Jr