Yeah mate. I'm running a 21 foot cruise craft older model with a very deep v. Just put a second hand 200 ho Etec on it. but haven't wired up the fuel flow meter as yet.
I'm over proped so that Would be killing my fuel econ. Only pulling 5000 revs loaded. Need to go down a few sizes.
The boat can handle it easy but we only have a 200l tank. Until I get a smaller prop and the fuel flow hooked up I'm not confident on heatons, well making it back any way.
Looks like you get pretty good econ out of that 150 Etec.
Thanks for the reply.