I once had a 1967 Firebird 400 parts car. It was purchased new by the NYPD. When I was done stripping it not a single junk yard would touch it. When I took the regi to my local precinct the desk Sgt said it was probably an undercover narc car. It had a heavy duty Borg Warner three speed manual trans with console. The engine was a 335hp, I think a WT. Single Q-jet. It had the 067 cam, 670 heads at 10.75 advertised compression, 4 row radiator, block off air flow plates, the long branch exhaust manifolds, dual exhaust, manual steering, dual rear traction bars, 3:55 gears, no radio, not a single interior option, but maybe the console? It had only one fan belt, for the water pump/alternator, and the biggest WP pulley I have ever seen, probably to slow it down. Topping it all off was the chrome valve covers and chrome pancake air filter. Was this an HO car?