Hi Napa,
I have owned several wooden boats. Trojan's SeaBreeze line-up competed with the Chris Craft Cavalier line of boats.
Your hull is a smooth side, V-bottom planing style I believe. You probably also have a bit of a skeg extending down from the centre of the hull like a keel. It really helps your slow-speed maneuverability although it does cut a bit of top speed from your hull.
You will notice what is referred to as "hard chines" where the side of your boat meets the v-bottom with a sharp change of direction. That helps your boat plane. As you probably already know, your boats sides are referred to as its freeboard...... but I digress
My opinion is that you can go as fast as you want as long as the marine plywood itself and the underlying frames have no dry rot. You'll need to check that out. Then as well, those two engines will have a certain amount of hours on them and may or may not like being horsed around. I think you'll be able to tell for yourself.
The faster you go, the more fuel you use and the more strain on moving parts so you'll need to discover your own comfort zone and happy medium.
But the boat will handle whatever you choose to give it.
If your boat has trim tabs installed, you'll obviously be able to go a bit faster. Hope this helps.
One thing about lakeland cruising, those lakes and our destinations are generally not large enough or far enough away to incur the need for speed. I'll get there eventually has become my motto.
Of note: Trojan Boats bought Shepherd Boats in Niagara-On-the-Lake and used some of those wonderful Shepherd hulls and forms. I once owned a 1954 mahogany 34 foot Shepherd cruiser powered by a pair of 331 Chrysler hemi engines. It was the reason I later stuck with Trojan cruisers. Quite a history!
Have fun.
Rick