Thanks, I spent a lot of time and testing on this bike project. Tried to to keep it simple. The NOS was a kit. The valve and t-fitting are from the hardware store. I found that the NOS boost was to extreme, so i added the valve to cut way back on the NOS. Also it helped the bottles of NOS to last much longer. It has been a fun project and I hope to start a new project bike again this winter, but not sure what design I will go with.