Hey fishy , you could get a solid cam/lifters and then they would all make noise all the time. Lol! I had that same problem with a MP hyd. cam/lifter set and the fix was a replacement lifter.
Actually John if I have to replace the cam and lifters I was thinking about going with a solid. At least they'd all sound the same. Hopefully nowhere near as loud as this one too.
Thanks to all the replies. Sure seems like alot of us are having alot more cam/lifter trouble than we used to have. When I was a kid I never once had a problem with a cam or lifter. Heck I even stuck used lifters on a used cam in a 383 and ran it for along time and didn't have any problem.