Doc
Would the 57 be a good marriage as a bolt in a CVO 110 with std. 9.3:1?
The numbers I have seen with the 57 in a 110'' have been fair, 100/118, however the stock 255, a good pipe, and good tune will get you 90/116 so the question is; is it worth $1200.00 for cams, gaskets, labor and a tune for 10/2 more knowing the 10 hp gain happens at 6000 rpm?

?
The other thing to keep in mind is even though the NUMBERS might be higher than your stock 255 cams the numbers don't show the loss of torque you will suffer at 2000 rpm to 2500rpm by getting rid of the 255's. In my opinion getting head work on your CVO 110'' motors and keep the 255's will keep the awesome torque they have at 2000 to 3000 rpm and carry that tq to the right further which will raise the horsepower leaps and bounds. I've see 110'' with 255's and head work (good pipes and good tune) at 105/125.....average at 102/122.
Now you have something to think about huh....
Doc