mwdill had one with BIG power in it, and can answer questions about the hull over 90 MPH.

Looks like Baja should have put a 90 mph speedo in it, They should have known 80 wouldn't be enough

And don't forget the external steering, too!

Low to mid 60's with that weezer of a 454. C'mon it's a 330 horse motor. I do believe that the stock speedo will show in the mid to upper 70's. Those stock gages suck !! My stock speedo showed 71 when on GPS I was doing 60 !!!

Smitty nailed it.
I had a H2X with the same motor. Speedo (read Baja dreamometer) said 67, GPS'ed 62. I got mine to 72 (GPS) with a Pro Charger and a few minor upgrades. Speedo read 80.
Added a 468" blower motor and got 82. Speedo was wound back around to the 0 post. You will need hydraulic steering and pretty good driving technique to get it there. A friend of mine with a similar setup got his to 90 with a Stellings setback box.
The Hammer is a cool boat. One of the sharpest and fastest (with adequate horsepower) in the Baja line.
With the below, you can get 80+.
Regards,
Steve

hehe, notice he said it will do 80 at sea level, from Colorado. Must be going down the rapids.

Bull____ My frind has one with a 5 liter and it does 63GPS!!!!!!!

Guys, he is from Canada....... So he is probably talking Kilo's......

I went for a ride in one here on the river with slight chop. Damn thing beat me to death. We hit a blistering 63 on GPS with a 7.4

Hi-Perf 2000 on here had a buddy with a 24 outlaw that did 100 Mph. Talk about crazy

I guess they forgot to mention that the 80mph is on the interstate