Thanks to our Friends at the www.shoshop.com
Take a good look at the photos below and SHO Shop is drilling the cam and hub and putting a pin in 90 degrees to the long axis of the cam shaft.
Enclosed are pictures of our V8 modified cams. Note the roll pin location. I'll be sure to keep you in the "loop" of happenings here at SHO Shop.
Let me know if I can be of any more help
Sales/Tech - SHO Shop