Motorcycle Repair: Harley Davidson, stroke length, stroker kit

Question
First off I am an expert @ALLEXPERTS.[ Autobody.] So I dont have much time to do my own reserch on my questions. But none the less here it is. About ten years ago I I bought a 1979 fxe early model.1200.  to freshin up the moter I had it bored out 40 thousand. Put in a b grind andrews and put a five inch stroker kit with an ss carb. It runs great no problem there. My question is what is the formula for getting the size and hp for my h.d.  If you dont have time to anser me thats cool.  Thanks a lot

                      Brian  

Answer
To determine the cubic inches the formula is:

bore X bore diameter X.7854 X stroke length X number of cylinders = cubic inches

To get the HP you will have to have the bike put on a dyno. There is not calculation for this
Good luck and happy riding
Mike