I'd start with the symtechlabs default tune, they have it and a whole repository of others on their site.

Did you properly calculate reqfuel? The default tune may think you have small injectors, so be sure you define them properly. Convert the flow if you are running non-stock fuel pressure.

It sounds like you are getting too much fuel, so you can lean it out with the reqfuel value (be sure to power cycle on change), or by selecting all the cells of the fuel map and taking fuel away (smaller values)