Here is why..!!..
Cesare Scotti in the first picture and Renato Molinari in the second picture.
Scotti was racing the #23 Molinari/Evinrude Starflite SS V4 third picture.
Renato Molinari was racing the #22 Molinari/Evinrude Starflite SS V4 behind the #23.
After 6 hours Scotti won and Renato was second driving an Evinrude.
Thanks to Terry Weddell for info and pictures.