F-body tuning = truck tuning. It's the same process.

That said, just because they are new, does not mean they are good and working properly. Have you watched the fuel trims and the O2's switching on a scan tool? That's where I would start.

 

also, this sounds EXACTLY what it is doing- when you first start it up from being cold it runs find and then about 20 seconds later the o2's start showing output and that is when all hell breaks loose, on the scanner it is showing the ST FTRM1 and 2 going from -30% or so to +30% or so back and forth

 

yeah I hooked the scanner up to it and it is showing crazy numbers (I described in previous post before this one)

I'll throw on some o2s I have laying around and see if that does anything, if not I should contact the tuner