Oxygen and Acetylene as fuel. Hands down......potato guns/canons. Will not elaborate.
Ether, hair spray, mapp gas, propane.....none of them had the level of *CRACK* upon ignition that Ox/acetylene does.
It started as sweet corn cobs over the freeway.
One day we figured out a Mystic Grease Gun tube fit the muzzle diameter really well.
Times were different back then.
impact-burst grease gun tubes are messy.
PVC pipe is brittle.
I have nothing left to comment on here.
