I am taking the 57 Tbird 312 out to repair a leaking torque converter and install a set of aluminum heads, Sanderson headers,etc. The engine is rebuilt ( 30 over) and is in good shape. I am thinking of installing one of Mummert's cams, possibly the 270, while I have the chance to do it on an engine stand. I can't see a way to groove the oil passage under the cam bearing with the engine still having the rotating assembly in it. Plus removing and installing new cam bearings is something I have left to the machine shop in the past. I didn't have the rebuild done, the previous owner did. I have the build sheet but don't have info regarding any oiling modifications that might have been done. Any ideas or should I just leave it be? This is for the street, not a racer.

57 Black Tbird 312/auto