Nitrous plumbing A1A...??..

All looks nice, but you are making things complicated to me, its the way you want to do it and thats ok, have a read of this thread, for some more info>...the bit where some guys forgot to connect the Fuel line for N20.

Big Nitrous, if you miss A/F ratio, better to miss rich or lean?
I went ahead and read all that and it seems like some of the guys are saying they had a better run when it happened LOL..
I know I'm overthinking a lot of stuff and that's generally what I do and most things anyways. I know I don't have to have the retard box but I only see myself giving small shots at a time and don't want my timing retarded 5 degrees for 3/4 of my run. Also the kits don't come with a low fuel pressure cutoff switch. Which would save me in the case that they're talking about I do believe... If I forgot to turn on the fuel the solenoids would never get power.. I think everything I'm doing is to keep things safe. The stand-alone fuel cell to make sure I can put 110 Sunoco into the shot..
A couple of my mottos are I'm old and crazy not young and stupid and also let's not run down there and bang one of those sheep let's walk down and bang them all....