Gallons per mile w 20' CVX/460 Berk?

[dregsz]

Hi all,
I've never had a big block or a jet before and just wondering what to expect for gallons per hour in a 20' stockish 460 jet boat at 30 mph +/- cruising speed.
Thanks
Evan

[Keithb87]

:idea: We Figure about 30 gallons = 3 to 4 hours of cruseing , tube pulling, wake boarding ect.

[dregsz]

Thanks, I expected about 8-10 GPH