What would be the cruise speed and top end, with 500hp's? 525efi's, sterling 588ci 650hp's.... The ones with 500hp's and 525efi's are not daytona"s.... The one with sterling power is a daytona boxes 5 blades props lighter lay up ect....

500EFI's should do low 70's
there a big boat, heavy, and wide which all doesnt help. Also if you want to go fast then you should be looking at 38 ZR's..Dont get me wrong i wish my 38zx would go faster like a ZR but when it comes to hanging out at the dock or over night staying you cant pass up the head room down bellow. The fact also that you can be down below making drinks, and hanigng out with your buddies without being crapt is also a plus. (9'6 beam) If your interested in one with 500's efi let me know im selling mine so i can go back to school and change careers. 2001 38 zx

Thanks prostock, are any more 38zx boat owners out there?

I just bought a 2004 38 ZX with 525 EFI's, haven't run it yet but everything I see says high 70's possibly 80 with light load.

I have seen 80 out of my 99 with 525sc's. full of gear and people it does a solid 74

THANKS guys......