289 vs 318 ..... Ford vs Mopar

An SCCA member I talked with in the early '90s showed me pics of his (I think) '66/273- 4V/auto Dart.
He bought it new, and used it to flat tow his Bug-eye Sprite. Anyway, what stuck with me were his comments about competing in autocross events with the Dart. Said the car was more than a match for any 289 'stang!