Brian,

NOS sells a bung with nut, you drill a hole and insert the bung, nut from the bottom...1/8" pipe thread for the fogger. I would go with a seperate fuel pump and a dedicated fuel pressure regulator for tuning. Can you tap your tank for fuel?

So, if it'll turn the 25p up to 5400 RPM for that few seconds, you'll gain something in the 5-7 MPH range. So you risk granading your drive to get 1 season of the ability to run a few MPH faster for a few short seconds at a time? At 4900 RPM, shoot the drugs and get a hard, fast shot of torque for the drive to deal with up to 5400 RPM (assuming that's correct for the RPM gain).

If you're going to a new boat next season and you intend to sell the curent boat, how much value do you think it will cost you when you try to sell a boat that has be huff'n drugs, IF the drive is still in one peice?

I think nitrous needs to stay on the street.

Kinda what I've been saying, but answering the questions with my best opinion for his application!

Dave