speed gains for 100hp shot of nitrous

[kuvasz]

does anyone know what kind of speed gains you could see on an apex with 100hp shot of nitrous? i'm talking about in 1320', 2000', 3000' with a one or two stage system. i just wanted to know if it's 8-10 mph or closer to 18-20mph. i wanted to know if it was worth my time to install a kit or not. i'm strictly radar running the sled.