[KingLT1]

I expect the A10 to show some slight improvement, but it's not going to be like a GT going from the A6 to A10 difference. That engine really needs the gearing to stay up in it's power. I believe the biggest reason for the A10 replacing the A8 is the simple fact that Gm will be able to hit the required EPA regs withought the shitty afm and crap converter slipping tune that caused a bunch of Converter failure. The 8l90 is solid transmission overall and adding another gear before 1:1 is not going to make a huge difference on a engine with a flat torque curve from 2-5400rpm.