WOOOOOOW, i love the car and a very very very clean engine bay
well, if you only want an additional 75HP, i dont think you have to change anything except for the timing, your timing should be between 8 to 10 degrees, i dont think you need an extra fuel pump for a 75hp shot, if you go 100hp and more, the inline boost pump from NOS (15763NOS) is a good one.
on my 302, my timing is set at 8 degrees with stock spark plugs (gapped at 0.32) and 98oct pump gas (kuwait) for my 75HP shot, i haven't tryed to install the 150HP jets yet, maybe next week, i only have one Bosch fuel pump and its working great with the 75HP shot, not sure if it will be enough for the 150hp shot, i'll have to check it on the dyno . but let me tell you dude, even with the 75HP shot, you will have alot of fun i think shaving 0.9 second on you ET will not be a difficult task.