The Nitrous 340 4-speed 68 Dart

I can't remember the brand name but they sold it at Home Depot and some other local hardware stores. You could buy in a really handy aerosal can or buy the gallon jugs. I haven't worked on it in a long time and hopefully will be bringing it to my new garage. But if you use the chemical use it in a well ventilated area AND use a mask... I was outside using it and after about 3-4 hours of use I had a sore throat for 4days after.