Is that the same as saying it was in a Tempest? The models we had up here in those years were different from yours. And to dispel a myth (conveniently started by some SCCA Trans-Am competitors I'm sure), all Firebirds and GTOs had Poncho engines, not Chevy engines (until the advent of "corporate engines"). I almost bought a 65 Pontiac Parisienne (Grand Prix body style I think) with a factory 409 for $250 way back, and apparently the dual-quad setup was available although I've never even heard mention of one existing.
