Six pack nitrous set up

I have a nitrous setup on my 340-6 duster. It was a full NOS brand set up. The center plate is just a spacer and the 2 ends have spray bars. I searched years for one and paid I think close to 500 for a used setup here on the forums no bottle. I made my own bracket that works off the outside vacuum carbs and comes on right about 2800rpm. It pulls hard with the extra 125 and outside carbs all coming on at once.