I know that this question has been asked before but like a dumby it didn't stick. What should the distance from the back of the barrel to the end of the cav. plates. My Lavey Craft cruiser has a 12 degree strut that is bent and is located 26 inches from the end of the cav. plates. Since I have it apart I was thinking about changing it to a 7.5 degree and put the strut it the proper location. I was hoping to put some more horsepower to the boat in the near future and want to make sure the boat is setup right for it.