$55 is hard to beat but if you want a cam that really performs, call Jerry Cantrell at Schnieder cams. send him your cam (or buy a core from the junkyard). tell him what you want to do with the truck and where you want your gains, he will "cam doctor" it and then improve on that even more, weld yours up and then regrind it to whatever spec.
IMO Jerry is one of the best grinders in the country. he is one of the founders of Crower Cams (also in San D.)
You can also call and send in your core to Crower and they will do the same cept charge you a little more.
I really don't recommend buying an off the shelf grind if you are looking for the maximum gain for your setup.
anyway heres the contact info.
http://schneidercams.com/