What are you using the truck for? DD, trail rig, mud toy?? With the limited info I would probably use a Comp XE264HR. Not a huge fan of the old letter cams from Ford racing, not that they don't work it's just that there are so much better cams out now.
I have also used Ed Curtis with www.flowtechinduction.com
for custom cams, you pay a little more but you get something built for your combo.
As stated above, make sure you have the right dist. gear and push rods should be measured for after you mock things up.