1999 518 ranger, 1999 200hp mercury efi, 25 tempest plus one hole plugged with large plug other two holes open, 41/2 inches pad to prop centerline, no jackplate, with 20 gal. of gas, on plane 10 sec. or less, top speed 68mph gps monitored. with two people and tournament gear on plane 20 to 25 sec., top speed 63 mph. will raising the motor one hole help or do I need a jackplate o prop change. testing was done with lake at 70 degrees.
bob