Thank you everyone. But my 888, is 30 years old. It is in urgent need
of replacement. It is NOT for fuel-saving economy I am conemplating
re-powering to a smaller engine. It is because the old merc runs on 7
cylinders (rusted exhaust manifault killed the 8th with salt water),
has very bad blow-by. We seldom do more than 5 knots in the rivers
lakes where we cruise, and NEVER go at wide open throttle.
Thanks all