Maybe he didn't have the money to do it that way first. Maybe he wanted it to sound nastier than the other cam he was lookin at. Maybe he wanted what he put in it to not blow the tires off off the line. What difference does it make? It's HIS. If he wants to weld eight Briggs and Stratton cams together and run those, it's his.
Thing about it, his engine built his way has beaten a lot of cars out there. I bet some were built your way.