My V-20 performance

[chrisrub]

Hi all,

I'm new to the forum. I inherited a 1985 V-20 (pics coming) with an OMC sea drive 1.6 liter outboard engine. It's all stock from what I can tell. I've been using the boat for about a year and have a few questions.

What performance should I expect with this hull/motor combination, as far as mpg, cruising and top end speed, etc?

From what I gather, I'm getting about 1 to 1.5mpg. To get the boat cruising on plane at a decent speed I have to have the rpms at 4500. WOT is 5000 rpms. Top speed I figure is around 25mph

I don't have money to put into a new motor, so are there any things I can do to maybe slightly improve my numbers?

Thanks!