A lot of it depends on what you will use the truck for. If its going to be a lot of daily driving, I think 3200 is too high. Im gonna go with a 2800 I think. Talk to 98SSONNOS. He seems to know his sh!t.
3400 Stall with a cam that quits at 4400 rpm technically ( End of power range), on the street. Not a wise choice at all, no more than 2400 and thats pushing it. Maybe if the motor could acheive over 6000 RPM's.
Also depends on tire & gear sizes.
I'm told driveablity goes way away on our trucks with the computers they have if you install a cam hardly any bigger than stock. This is from a builder that has taken them out after the customer told him to install it & gave up trying to live with it. So according to this, if your considerig a cam also consider DFI