Never did max rpm….cruise 3300-3400 16-19 knots depending on sea conditions….
1.75 - 2 KNMPG…That’s total miles per trip divided by how many gallons we burned that trip…last Wednesday 114 nautical miles…burned 59 gallons… 1.9 KNMPG
We installed a Floscan 9000 Series on our Shamrock back in 2013 and it’s worked great all these years…typical tuna trip during the summer we’ll burn 60-70 gallons….when we fuel up after the trip it will be + or - half a gallon compared to the Floscan
Give Vince a call at Discount Inboard Marine...He should be able to hook you up with the right coil...Thats a Prestolite electronic ignition you're dealing with. A great ignition unfortunately not available any more.
I moved away from fuel gauges not always reliable and another place for a leak in the tank. I went with a fuel flow meter and have run hundreds of gallons of fuel through it with accurate results. On an average offshore trip we will burn 70 gallons of fuel. The meter wil be + or - a half...