IMO, I'd stick with something a little smaller. That cam works nice on the fbody's. I know you like to drive your truck around the city and street race, so a cam that big wouldn't be fun to drive.
It will have no bottom end and that 4.8L needs all the lowend torque it can produce. Plus, to take advantage of the power band, you'd need a stall converter of at least 3600rpms, which would knock about 3mpg off your current mileage in the city and feel like you're stepping on a sponge during daily driving.
Also, that 4.8L will probably want to shift about 7200rpms, now you're tearing into the bottom end to strengthen it up with rod bolts.
The key to a great truck is to build it for usable power. Having a truck with all topend isn't fun.
I guarantee you a 220 cam in that truck will run just as fast as a 234cam, if not faster. Then add a 3000stall and with your current gears, it'll be a pretty fast truck.
Hope this helps, and please guys, this only my opinion based on my experience.
Let me know when I can order your cam package
bye,