what should a 01 38 daytona zx with 500efis in it run mph? boat has warlock boxes 1.50 drives and 28 b1's also what do you do about putting xrs on this box(warlock) do they make a shaft for the larger u joint on the xr? does any one have one with more power than a 575sci? thanks james.

78 radar in the shootout in 2003 warm water 500 EFI's loaded with Generator. Can run a little faster GPS with better water.

Coyboy what is the weight diff between the zx and the daytona?

The Daytona is a lighter Carbon lay-up, boxes, and some black and white checkered racing stripes, that make it go faster. Jeff

I think it is around 600-800 lbs. Daytona is the way to go if the difference in money is not way off. I do not have the Daytona currently but my next one will be a Daytona or the new ZXR.

anyone seen one with bigger power than 575sci's?

There's a custom Daytona out of Florida mostly black with some yellw accents. That boat is running 640hp Innovations on BMax's. That is the most power I have heard of in one.