What i would like to know is how to choose the right arrow & broadhead including grain for turkey.my draw wt is 55lbs & lenth is 29 inches.
It appears you have about ±60 # of energy which is plenty.
The main point is the killing zone is not large on a turkey & it is not good to wound the animals: hunters have all the problems they need, in this day and age. When you shoot at the head or the neck & miss 2” (which is possible in some hunting conditions) there will be no wounded animals: thus you may have another chance to shoot at it tomorrows.
You can buy a turkey broad head that has a very large dia & very slender blades. Some of them will shoot good to 40+ yds. Do not use red fletching, the red will shock a turkey more than the red check, will shock you on a test paper.
You will draw your bow when the turkeys head is out of sight because they see 360, so you need the bow weight & letoff as such as you can hold it for some time.
& as stated above do not expect the head or neck to stay frozen in time.
Some people will tell you not to anticipate a shot, but some shoot well that way. You may want to practice it because with turkey it can be convenient.