Supercharged V8 and HFS-5

[slow ride]

Hello,

I will be running the HFS-5 with DDS v10. I plan on using it with a hobbs switch to trigger at 8psi. I have an overdriven magnacharger (roots) making around 14 psi in my 6L Pontiac GTO. I have a couple questions:

I want to know what size jets I should use. I will be using 50/50 mix of meth and water on 93 octane and 57# injectors. The car will be making anywhere between 550-600whp. I tried using the a calculation chart, but I must be doing it incorrectly as my results are making no sense.

My other question is where should I mount my nozzles and how many nozzles do I need? Here is a picture of my setup: