See... jerks. I DO know what speed density tune does and how you do it with HPT. You can do one with or without a MAF. Since this guy has a LS6 block/LS1 rotating assembly, he can use a 2 bar SD tune if he wants. And look at his mods! Since he has major mods (N/A) with a high lift camshaft, he probably needs to have one done. It wouldn't hurt him one bit.
And yes, I do agree with you Danny and James--he does need to set his tranny line pressures back to stock since he is running that specific tranny (knowing how it was built).