I own a 2007 Rinker EC330 I purchased new in 2010: has 350 MPI sea-core engines DTS controls with Bravo 3 drives
Top speed was about 42 MPH,
Beginning of last season first time out would not get above 30 MPG for about 30 minutes, then engines RPMs went to normal and boat ran good all year. This year wont go over 35 MPH, very hard to get up on plane: I Replaced fuel filters, added fresh gas and fuel additive, cleaned fuel arrestors ,
engines have 168 hours on them. I was told to replace cap/rotor and plugs, but to me it feels like not enough fuel/air, any ideas??