I have a mtntk kit was gonna do big bore but due to turnaround time in middle of winter i went with an indy specialty warthog turbo engine. Bully dog is not end user tuneable unless you got connections to get the mapping program. Dobeck sucks imo but have only dealt with their stuff from mid-late 2000’s. Even though the indy motor doesnt require tuning compared to stock engine it didnt co operate with the updated fuel setup (old setup did work). We tried datalogging and mtntk made some maps with feedback but didnt pan out and was somewhat to be expected as remote tuning requires much more data and even remote connectivity. But at the end of the day there was still some performance left on the table so i am going back to the tried and true SDS XIC box (boost it). I have used them on several builds and they are simple and just plain work. May be tough to find one i hoarded a few. But I would be talking to redline performance about using their fuel controllers if It was my build and didn’t have an XIC on hand Reason I say them is they have the ability to tweak stock injectors to make big bore happy then control auxiliary injectors for the boost. Im ditching mtntk fuel setup and running stock injectors/stock mapping then secondary injectors off dedicated control to supply boost fuel. Always worked the best for me compared to dobeck/attitude boxes and flashed ecm like mtntk/sibler