340 cam for 318

that was the best of the ones you posted.

personally, i'd look elsewhere before buying anything from comp (except maybe springs/retainers or maybe a timing chain).

you mentioned 4.11's what tire are you running out back?

also, i don't know if it's been asked and answered yet: what's your desired outcome? what kind of driving are you doing? what are your expectations?
Tires will be 15 inch, probably in the 205-15 range, maybe 215. So not tall. 60 series if available.
Good drivability, I don’t need/want a rumpity cam.
No strip time will be seen. Possibly some spirited driving, but not along side of someone.

230/240 HP is the most I’d want in this truck.

I may change the rear end though, but will start with what I have.