I totally agree and haven't seen many that appear ok at all. I am working now on lengthening my new cam with a home made hard spacer and raising/shimming the drive gear as we speak. And, I have a solid flat tappet lifter dang near hanging off the edge of a cam lobe on this one. I also have the need to use a adjustable rotor for the Distributor. All top quality brands too. I've been a machinist etc. all of my working career and tend to see these anomalies easily by eye at first before getting out the micrometers. I can't imagine not checking this area in a engine.
[censored] is going on with this project raising the oil pump drive gear
Is the oil pump drive bushing in decent usable condition? Is your block even usable?
What type motor are you working on that you need to lengthen the cam on?
Sometimes you need to throw away all the bad parts and get better parts, especially if you want good results
