Back in the early 60's you could buy liquid ether(the kind doctors use for open drop anesthesia) from a pharmacy or a doctor who would sell or give you the item to be used in his presence.We would take a whiskey shot glass and pour this foul smelling stuff in the fuel tank(origin of the term-THE CAR IS A REAL SLEEPER)...We did this to a friend's 1957 olds rocket 98 convert. with the J-2 tri-power carb. set-up. It's true-it went like a nitro-methane rocket dragster...we figured the performance increase to be at least 60% or better!!!!Sooooo---we used 2 shot glasses , 3 shot glasses, and then...FULL CYLINDER HEAD MELT DOWN AT 80 MPH ON AN ICY WINTER ROAD IN WISCONSIN.....Spinout into a snowbank and the end of my friends father's car...Good thing we only have sand here in Florida...