What I have noticed after I slid the new roller cam inside the block(Full Throttle Cam) is its rubbing the block in an area it shouldn't be. It feels like the raised machined surface behind the circle with a flat edge on it(behind the cam sensor gear) that rides against the block isn't thick enough and allowing the cam to go back further than it should. The cam that came out and the original cam that I still have don't do it. Do you all think its a machining flaw on the cam or do I need to get some type of shim(if there is such a thing)?