Jeep Strokers

I have a 4.6 stroker and twice now the center two cam bearings have failed, bearing 2 an 3 have been squished out from the cam journal like play dough in-between you fingers, 1 and 4 have wear, I thought maybe the cam was too big or to high spring pressure, low quality bearings, or cam walk, if it was cam walk would my distributor gear be trashed? Its fine but I have about 3/16" of lateral movement with the camshaft, it has the spring bolt I'm going to use a solid pin this time to make sure it has the proper thrust clearance, I talked to a lot of shops and most of them said I should polish the cam and increase clearance to allow more oil cushion, I've heard .002-.0025 and also .004-.005, everyone has their opinion, this time I'm using ACL cam bearings and a solid pin, the first cam I used was a bullet racing cams stage 3 217/223 .484/.494 with spring rate of 110 318 and going to try to use it again because it's what I have on hand, I don't want to put a stock cam back in because it has a lot of nice stuff in it, I'm trying to find a stage 1 cam but I don't know anymore what's good quality and if it will run ok, the second cam I had draw to low of a vacuum at idle and messed with the computer, don't k ow what brand or specs, a shop built the engine the second time, I would appreciate and advice info or other things to try and consider, thank you so far for all your help with this, it's been a huge stress and struggle, I just want that old jeep reliability back