I presume that this is lloyd?
Get a standalone fuel system and a wet kit. It's the safest way to spray these cars. No worrying about injectors adding or pumps or any of the other bs. Mount a cell in the truck, get a nice fuel pump, good regulator, wet kit and have at it. All you'd have to do is get it on a dyno to check the a/f and there will be no need for a retune if it is set up with it's own separate fuel system. (of course I've never done it....)