I don't even know if you you can buy a glass-belted tire anymore. Mid-seventies, I used to buy a set of cheapies (were they 14"?) at Fleet Farm, throw 'em on for a weekend - and they'd be gone by the end of it.
Not claiming it was wise - but it sure was fun.
Oh, 'nother little known item, hydraulic lifters "float" at 'bout seven-thousand rpms (If I recall correctly). The engine starts sputterin', and loses power, 'til the lifters pump-up again at a more sane rpm. >grin<
