Couple of questions. Do you plan on putting a skid plate to protect that fuel filter and pump? The original owner of my 68 built and installed a skid plate just for the change over valve on the two tanks. One of the few things he did right.
At this point, no, don't think it will need one? The drive shaft will be right next to it and hang lower. That viewpoint may change as we get further along.
What is the increas in fuel pressure with fuel injection?
Depending on running conditions, ~40psi.
Lastly are you planning on doing more 2FE conversions? This look like a nice setup for my FJ45 that I plan on using a A440F power robbing dog in so the better half can drive it.
This is coming out very nice. Would like to see it run before it heads back south.
At this point,,, NO!

Earlier today, we had doubts about the motor fitting in the truck, now it's sitting in there, looking good.
That view is also likely to change. It has been more work than we thought, but a lot of it has been figuring out how to do it, if we were to do it again, would be quicker/easier.
Still a big job, like Carl has commented several times; do you really have to mod every part?! Pretty much, but a lot of it is the mod policy that we are going by. For example, it would have been much quicker to cut the fitting off of the water pump, thread in a fitting and run 1/2" hose to the thermostat housing. But, if the water pump failed, the new one would need to be modified. As much as possible, are using stock parts and 2F on the bottom, 3FE on the head, in an attempt to simplify future repairs. Attempting to confine mods to hard parts, that are not likely to ever need replacement or really easy stuff, like hoses.