440 problems (take 2)... More known values

I found the cam you posted. If I am not mistaken based on my research, the XE268H is the 3 bolt version of the XE274H.
Sorry, for whatever reason, you are mistaken. I got to their cams by searching COMP Cams and clicking the link for the online catalog. Once you get that click products, then cams then find Chrysler B/RB. Once you're there you'll see links for all the cam product lines.