GTS or GSS

That article perpetuates the myth that Mr Norm "invented" the 383 A body...see the real story here...The First 1967 383 A-Body, 'Barracuda or Mr. Norms's Dart' To summarize, Plymouth was already installing 383's in Barracuda's at the factory in Sept 1966, for the '67 model year, long before Norm installed a 383 in a Dart.

That's right, but he did persuade Chrysler to do it. That much is in black and white.