Originally Posted by CantRepeat
I'd like to see in writing where 93 is recommended by either PCM or Indmar for an 85 351W. I just look at the specs and it's an 8.3 to 1 motor. In stock form there is zero reason to recommend or even consider running 93. It would be a complete waste of money.
Like these pages from the manuals?
I spent most of my money on booze, broads and boats. The rest I wasted. - Elmore Leonard