what is your motor displacement?
i understand your model truck from the factory has plenty of down low power...so i would go for a little bigger turbo, i would go external with the wastegate with a synapse, synapse is the best i have ever seen but there not a HUGE name just yet so there products are still reasonably priced, i have a BOV from synapse as well sitting on my bench, but i would go with a lil bigger turbo, i have a GT40R garrett but i think that would be overkill, i'll keep an eye on this thread homie. here is the synapse website.
http://www.synapseengineering.com/ they have quite a few dyno sheets and vids on there to check out.