so darn interesting...my guess, a lot of things were 'lost' during the hot rodding and restoration (for example, the Speedo is probably from a Longchamp...the clock and ammeter from wherever...and those wheels, the uncanny valley...). But most interesting to me is that these were genuinely attributed as 289 Hi-Po (305 HP...). The '305 hp' quote is oft repeated...
(wow, and adjacent motor numbers, at that...)