Nitrous plumbing A1A...??..

Well I grabbed all my paperwork for my six Al and my two step and this new start step deal... Spread it all out on the dining table in preparation to call MSD and get some clarification..
Before I made the call got a flashlight out and got upside down underneath my dash to examine my MSD wires. My MSD is in my glove box... To my amazement the mentioned distributor extension wire was already plugged in and a big bundle of it coiled up to extend as far as I need. (This doesn't run in accordance with my usual luck!).. also the white wire that coming from the MSD that is normally blocked off I put a butt connector on to block it off. Meaning I just need to connect the yellow wire to that white wire and basically off I go. disconnect the MSD box distributor plug and plug in this start step...
To my credit though the MSD tech line did say the instructions weren't complete. They just show one scenario of a points distributor and one scenario of a 7 Al box...
I will take out the passenger seat first thing tomorrow when I get started on all this. I want to run the nitrous line and get all the under-dash wiring and relays...