Right, I was thinking of looking at trying a 28 with the new lower

-2" and there are no mods needed to the upper to clear the propeller. It does sound like -3 is where you want to be. You'll lose leverage and it might be harder to keep the bow up. Yes, this could get interesting. Let the Scarab Gurus hook you up with what to do.

Yeah I'm not 100 percent what I want to do. Its def a heavier boat then some.

Something doesn't make sense. what rpm do you spin the 24p? and 672HP should be way more than enough for the 26 on that hull, your slip is very good for mph. sounds like a real peaky torque curve. we need a motor guy to look at your dyno sheet.

because it is a cool boat with big power,

welcome to oso, before your done you'll be posting similar vides

https://www.youtube.com/watch?v=TmqvQCPlUAg

I can turn the 24 to 5800. And I peak both go and tq at 5800 To 6k. But I struggle to get it with a 26. Idk if I need to find a 25 and try that. Or shorten the drive up a Lil to relieve some drag.

I got ya bud.

Find someone with a -2 that will let you try it. I am running a -3 and it isn't that much to modify the upper. I have a -2 also that I have as a spare.
I wouldn't think that 5 inches down should be a problem. You will not have to trim it anywhere near what you used to at 8 down.
An IMCO extension box should help also - Increased bow lift for more efficiency.
The boat should handle better at top speed because you won't have to trim as high.
do you have tabs? You may need them.
I used to have a 34 SCARAB and put -2's on it.
I only gained about 1 MPH but handling greatly improved.
I did have to go to 4 blade BRAVO props. (28 pitch)
boat came with Mirage 3 blade 25 pitch.
The deeper drive will improve cruise but hurt top speed.
The higher the drive height the harder to get on plane and the more slip you will have at cruise speeds.
I went from the -2 at 1.5 ratio to the -3 at 1.34 ratio on my current boat and also added the IMCO neutral extension box.
BUT - I am running the prop shaft 2 inches ABOVE the bottom of the boat.
WITH only a 4 blade BRAVO prop.

Sounds good, I do have tabs. I have 30 inch k planes. And I thought the ext box would put the drive back down in the water. Cuz I thought about that too. Getting a -2 and putting on a raised 3 ext box.

The -3 WITH the box I think would be perfect. ( neutral box or 3 inch rise NOT installed for rise.) You can always lower the box or easier to add a spacer to the drive.