The only difference from the diagram that Steamer showed is that I installed the relay on the pink wire going directly to EFI not where shown on diagram since the ignition hot (on diagram) could still send a dirty signal to the EFI.
Although my set-up differs from a 2F (running a SBC) the one piece of advice if not already mentioned is to run a relay off your pink ignition wire with a wire straight from battery. If any other electronics are run off the same fuse as the...
I am happy with my Herculiner application, prep is the key, ref below post
https://forum.ih8mud.com/threads/what-have-you-done-to-your-land-cruiser-this-week.255593/post-14964545