sb/bb both have a 7&1/4 dampener so yes the MP timing tape is the same. I would clean the surface well & iirc use some clear lacquer on top of the tape after it's on to keep it from flying off. You have a dampener that is not the std 7.25? I prefer to find actual TDC then mark the dampener with critical points such as 5,10,15,20,35,36 and 38.(1) degree is .0632683". ie 2&1/4"(2.246") is 35.5 degrees