I have a monster and cant say one bad thing about it, awesome power on the PUMP only with no timing/fueling advances by a box. Daily driving I run with the comp box off but if I want to play the box gets turned on.
Reason for larger injectors is to get the fuel from the pump into the motor, Too small of injector and the pump cant push all the fuel into the cyl causing issues (couple seized/blown pump from this) Same goes for the crossover tubes. You can run stock lines.
Call Mike and pick his brain a bit about the pump Im sure you wont be disappointed. 419-237-1521 Tell him Ian sent you
Adam Winslet(sp) did 1067 with NOS on a VP truck