While I have my block and head out of the truck what are some good power adders to have done to it while it is at the machine shop other than porting the head. Keep in mind this truck will not be a street truck any more. 
A few more questions:
What would be a good bore size? Is bigger better?
Where to get a good set of over-sized pistons?
What would be a good cam size?

A few more questions:
What would be a good bore size? Is bigger better?
Where to get a good set of over-sized pistons?
What would be a good cam size?