100 shot of nitrous on 360 magnum engine

With only 100 shot you could just add a second pickup to your existing tank and run the fuel for the nitrous side from there. I strongly recommend a fuel pump dedicated to the nitrous supply. Once you start moving up in power (250+) I’d recommend a small fuel cell with race gas in it to supply the nitrous side.
This ^^^^^ is how you don't blow chit up using nitrous.