Just bought this boat about a month ago 1983 scarab 11 26 feet twin 350`s alpha gen 1 drives. This is my fourth boat first twin engine. Both engines are standard rotation my question is when i get up to cruise or wot my port engine seems to reach significantly higher rpm then starboard. So i have to back off on the port engine to sync them.Depending how many people i have on board wot seems to be anywhere from 4000 to 4800 is this normal for twins?