I have nearly the opposite issue as that of another poster. I've got a '99 Four Winns with a VP 5.7L GSi - SX and just had the head gasket replaced, valve springs, water pump, t-stat, etc. First time back out I noticed I'm now running about 500 rpms higher to get the same speed as I had before....NOW: 30 mph (GPS) at 3500 rpms, WAS: 30 mph at 3000 rpms. Weather cut short the day, hoping to go back out tomorrow to verify it wasn't my imagination. Did not try to run WOT.
Nothing was done to the outdrive or prop. Anyone have any thoughts on this? (Other than this boat runs great.)
Thanks.
Nothing was done to the outdrive or prop. Anyone have any thoughts on this? (Other than this boat runs great.)
Thanks.