I can tune it for a fair price since tuning is my profession, yea, if that's what you're asking.

Using 750s with an AFC it's a bitch to get the car to run worth a shit, they are too big for the stock ECU. What is your boost set to now? It sounds like a pretty simple problem but it's just a hard description to remotely diagnose. My bet is still on boost leaks. You wouldn't believe how many times I've told people they had boost leaks, and they insisted it wasn't a problem, and a month later they tell me a boost leak turned out to be the problem.