1987 4.3l 175hp Fuel Consumption

[emmettfire45]

Hello all I have a 21' Seville Cuddy. It has a 4.3l 175hp with a a1 drive. Just wondering what the average gph may be at cruise and at wot. It has trim tabs and a hydrofoil. Thanks in advance. :huh:

 

[r_squared]

Did you ever get an answer? I have the 5L 180HP and wondering the same thing, although my boat is a DA at 23'.
Just looking for a ball park to shoot for