One issue that I have to think about is where to put the IAT (Intake Air Sensor); talking to Bruce at F&B, he is recommending it be put it into the AC;
You mean the air intake temperature sensor? They told you to put it in the AC as in air conditioning? If that's what they meant the computer will think you have a nice cold air charge and will richen the mixture, but your intake air is really a lot warmer, so you will be running real rich, I think it should go between the air filter and your throttle bodies to get a true measurement and let the computer do its job properly.
But I'm not an expert, that's just the way I did mine with Megasquirt EFI I do wonder why he (Bruce at F&B) recommended that and what the reasoning is.
Good luck,
Dan