Pantera makes a great boat, but let's put down the crack pipe when were talking about speed. My 28 pleasure single I raced for 2 years had a 540 ci 650 hp and ran 75 to 77 mph . My kryptonite 27 with a retuned version of that same engine making 600 hp ran 87 mph. I built all the engines, so I know what they were.
Twin496 ho power, at least in the 2001 pantera I rode in at the factory turned 26 b1 props , so if you do the calc you can figure out the speed .

Again, great boat , killer in the ocean and rough water, but let's keep it real with the speeds.

Ask Green Eyes about Kryptos and Panteras in the ocean

just wondering...what's the speed difference between a 28 stepped single and a 28 non-stepped single (say a merc 525)? I am curious on twins too, but I don't think Pantera has built a twin stepped 28.

Jo Nunez told me that %10 higher. well i will be able test when i have mine...

I dont think they'll build a twin bbc 28SR.
IIRC, Jo said it would sit too low.
Now he may do it in an twin sbc, or twin sbc stagger.

Staggered blown/injected twin SBC would be the way to go, that boat would ROCK, and be reliable!!!

Fast Fun which boat was better?

That is what Jo told me as well. I think a 525 non-stepped boat ran around 70mph so a stepped hull should run 77mph. Just my edumacated guess.

as i said, i will have the chance to try if i get my boat sometime...

And, what does Green Eyes say?