i have a very nice 1995 eliminator daytona that has one notch and 2 steps in the bottom and currently running really well but looking for more so i currently have a brand new 3 inch rise imco box with everything needed to install but engine will need to be raised to use and its a lot of work to do so i was wondering if anyone would have any good info if this would work on the hull or not. The propshaft looks like its too deep in the water compared to bottom of sponsons. Good upgrade or is it a might or not work out situation.. looking for more speed and stability

Raising the engine probably won't help with stability. More HP usually makes them go faster.

I bought an American Offshore 2600 NSX with an IMCO 3 inch raised box installed by the previous owner. He never got it dialed in and sold the boat to me. After building and installing a new engine with more HP we started playing with spacers and props at different prop shaft heights. To make a long story short the box didn’t do much to enhance the performance of that particular boat. It looked cool and effectively increased the running surface length but that’s about it. If the transom already has a notch the hull is already providing the benefits of a box. You might want to reach out directly to Eliminator though because every boat is different.