Nitrous question

Holley Blue will work. I used to have a similar setup years ago (mild 360, OOTB Edelbrocks, Air-gap, 750dp, MP 509 cam, Blue pump, cheater kit, MSD everything, 27° timing, NGK R5671A-8 plugs), it worked fine. It ran 11.1 @ 122 at Bandimere Speedway in Colorado with this setup at a 180 shot. I imagine that would be a mid 10 at low altitude. The 150 shot would run 11.4-11.5 @ 118 ish....on just motor is was usually in the high to mid 13's thanks to the lousy 9000+ feet DA.