For Sale: Nitrous & Fuel Solenoids. The fuel solenoid is for alcohol/E-85. These solenoids are for the NOS big shot plate system capable of a 400 horse power shot. I'm not sure what these solenoids are worth so make an offer. The Nitrous solenoid was used for 3 hits. The fuel solenoid was never used but it was bolted on and it rode around for a while.