Nitrous on a 340 100 shot

I'm planning on adding a 100 shot of nitrous to my street car. Its a 69 dart 340 and has a mild cam, intake, headers and msd ignition. I'll be tossing out the mechanical fuel pump for an electric one that is 7psi and can handle 60gph at that rating. Looking for any input if that will be enough constant fuel supply for my needs? (It's all 3/8 fuel line) Plan on using a 100 micron pre filter and a 10 micron post filter then teeing off the fuel line and hooking it to the solenoid. They are both earls reusable filters and should handle the gph. Another question I have is about the spark plugs, do I need to get colder plugs when I'm just spraying 100 shot? If so how much colder and do I need to change the Gap? Seems like I could just throw it on and things would be fine, any advice would be greatly appreciated. I'm just looking to get a bit more thrill when I stab the throttle.