this is why I recommend local tuners to everyone as you wouldnt have to do this crap.
IV been involved with many cam swap, not one have we had to do this.
I just did my cam this past weekend with heads and manifold. i slipped a tune in it i worked up in 10 minutes to keep her drive able and shes fine.
very rarely do/will you hear of BB issues, are there some, bet your ass there is, he is one of the largest GM tuners and has tuned a metric shit ton of cars, also, not everyone has access to a local tuner, hence why he stays in business. So to all that...csb
OP, call Justin, or message them here and explain to them your issue. I would use all routes seeing as they have a few tuning sessions going on this month. Why did I mention that? Because Justin can be hard to reach while out of town tuning. But Jenna and Jesse can deal with pm's here and get you straight!