just finished putting my motor back together, blew an exhaust valve on my #4 cyl. The entire job went smooth and I felt confident it was 100%, but I have a problem. Put the boat in the water today to test and it initially ran awesome. Up on plane in 4 seconds and the boat was running perfect...
This is a 1997 stingray 220sx with a 350 mercruiser mag, carburated with an alpha drive. This boat will run in the high fifties, and plain in seconds. Last few times out the boat felt very low on power thought it was to many on boat. I checked all aspects of spark and fuel:carb, fuel...