I was at Robbinsdale Marine today and talked to the owners. They work on Johnsons/Evinrudes back to 1954. The owners just bought a Scarab boat used on Lake Havasu with 700 HP that can go 70+ MPH and were going to use it at their cabin in Northern Minnesota on an eleven mile long lake.
They had just repaired a Hydrostream with a hopped up 235 Evinrude. Their third repair on the motor under three owners.