oldgit
Well-Known Member
As VP stated you are not going to improve on those numbers, about as good as it gets with the 41
I’d say you have a good result There , old boat and engines .
Safe margin is max attained rpm and drop back 200 you can run at that all day as long as water temp is ok .
Has the boat always been in fresh water? If it is propped for salt water it may struggle a little in fresh.