I think you’re right on the Long car not running until 67/68. The build was featured in hot rod for a few issues in 66. The willys I posted earlier is definitely a unicorn in a herd of horses. And yes the rear tires are 8.75 racemaster dragsters. The article says the 57 Chevy rear was narrowed 10”. This car also had disc brakes and coil overs on the front end...way way ahead of its time.