I think his kits right now are pretty dialed.
Trying my best not to buy one lol.
I have seen Dave at Boulder helping guys tune kits bought from other manufacturers, so imagine he would support his own stuff pretty good too if there was a problem.
There was complaints before about his kits being rich on the bottom end. But his latest generation of fuel controllers intercept the ecm's signal to the injector and he has the ability to manipulate the stock injectors any which way.
I have a boost it turbo kit for sale if this is the direction your going. They had a good reputation, and its perfectly tuned.. garret genuine turbo. 2500 bux for the kit and all its dressings