I have Perkins range 4 200 engines in a 1990 DeFever. I have been unable to find the wide open throttle limit for this engine in spite of hours of searching. Info on the web runs from 2400 to 3000 with all sorts of numbers in between. Does anyone have the wide open throttle number for this engine so I can target the props I am putting on the boat. Original props turned 2700 wide open. The four blade replacements are turning 2900 rpm WOT. If there is a place to fine this info I would appreciate the help
Scott
Scott