liftbridge
New Member
Hello, looking for some help. I have a 1981 srv310 that came with 454 330hp. I just bought another Sea Ray at auction with fresh 350's 255hp. The latter has strait drives and my 310 has vdrives. I need to know what ratio Vdrives I need to run if I repower from 454's to 350's:huh: Thanks, John
