I've been using nitro propane for a while and the performance increase is substantial. I have got the dynojet jet kit in my raptor and was running 27.5 pilots with 148-150 mains with air fuel srew 2.5 turns out.When I started using nitro propane I called dynojet and had them send me DJ jet sizes 155 through 175 mains; five of each size. I am currently running 10oz. of propane to 1 gallon of fuel, mains are at 170-175 dynojet jets, running ngk plug one number colder, and air fuel srews out about 3.25 turns out. Anyone had any experience on a dyno with propane because the peformance increase feels substantial.

 

Anyone out there. I don't get off work until 07:00am. It's going to be a long night.