Hello everyone I am new to the forum. Recently bought Zodiac futura mark 3 2005 with 60 HP Evinrude ETEC 2 stroke Got the boat to Lake Tahoe at 6,200 feet Unable to run faster than 23 mph-zodiac forums say 37-40 mph Also was unable to go over 4,000 RPM - zodiac says 5,700 Changed prop from...
