The 340 is out....again.....

What did the eod and main bearings look like? I recently rebuilt a 360 and the rod and mains looked amazingly good for a hi mileage motor. Pulled the cam and the cam bearings were competely wiped with chunks gone out of all of them. Had the block got tanked, New bearings installed,etc. Owner of the shop said they weren't getting enough oil to them and got wiped out. I put my new cam in and it spun nice with no right spots and was assured that were fine now. I've tore down ALOT of motors over the last 35yrs and never seen cam bearings like that. Now it's got me nervous, as I've got a lifter ticking at start up in the morning after a few thousand miles. Hopefully it's just a bad lifter, it happens. Were your cam bearings in bad shape before the engine was built? I was assured there was no blockage, but the shop is now closed as the owner just passed away.