Mopar is famous for not getting the cam bores the correct I.D. I have scraped many cam bearings, one at a time, to get the cams to install properly. If you don't have a cam bearing tool take the block to someone who does and remove all of them but the rear one, install the cam in it annd see if it will rotae easily or not. If not look at the tight spots, they shine and scrape the shine off with a BEARING KNIFE, do not try to hone it Once that is fixed mmove to the next one, do one at a time until there all done One of the machine shops that I use to used in SO CA used a brake hone to hone the block cam holes(journals to the proper size and then install new standard cam bearings. I don't live close to them anymore so I have to do it myself (scrape method) now EDITED for content, sorry for rushing earlier IHTMSN