pretty cool article about the fuel cars in the 1960's when NHRA teams were experimenting with hydrazine as fuel for their race cars . like when you noticed a green header flame that was hydrazine not nitro !!!
http://www.dragzine.com/tech-stories/fuel-cooling-ignition-tech/flashback-friday-the-story-of-the-leathal-fuel-called-hydrazine/
http://www.dragzine.com/tech-stories/fuel-cooling-ignition-tech/flashback-friday-the-story-of-the-leathal-fuel-called-hydrazine/