No need to do that- - - -I took a junk 235 cam recently, and turned the bearing journals down to 216 size- - - - -it slips right in and turns with no problems. I'm planning on modifying a new Elgin Industries 261 cam to use in the stroker engine. Even with the increased stroke, the NASCAR rods have a smaller cross section than the 216 rods, and there should be more than enough cam lobe clearance.
Jerry