anyone know the X deminsion on a 2004, 28ft, Scorpion - Donzi,28ZX with 377's

they are not all the same..they all vary..

thought maybe same lenght boat with same power would be same "X" or real close ,,,, twin BBC and twin SBC maybe different,,

how about if any of you know your "X" deminsion with info on boat and power bet it would help to gain knowledge of speed
mine is 2001 29Scarab twin 383's making 400hp/425tq (full dress dyno) bravo1, 23p 70mph 100gal fuel Propshaft is 7 3/8deep