Yep, they have caused my tons of problems. Did you rotate the cam with the oil pump running? If not you should because I had to go with a custom ground small base circle to get mine to work to prevent excessive oil hemmorage problems.
Thanks for the oiling tip. I always check for oiling but haven't got to that point because of the problems. The cam I'm using is very mild, a little over 1/2" lift so hopefully this won't be a problem. If I knew about all the aggravation of these lifters I would've gone with a cheap flat tappet. Your motor musta cost a fortune!