I have a friend who likes to collect odd ball stuff. Always fun to visit him. At one time or another he's had: A very nice BMW Upsetta (Erkyl Car) Two Vincent Rapides, Two square four Royal Enfields (he's always looking for square pistons)
a racing bathtub, for bath tub racing no less, lots of Cuckoo clocks, goes with the territory, also likes to collect Simca V8 engines. Pictured. He installed one in his Nash Metropolitan. Fastest Nash Met in town.
And has two Hop Rods. TWO!!
Seems to me Road and Trac did a Hop Rod road test years ago and found among other things, infinite head room and a good number of hops per gallon.
Like most of these gyro gearloose types they are a lot of fun to hang out with. Never a dull moment.