Had a C6 behind a 460 as a mock-up in one...
Have also had a T5, C4, T-56, TKO, and a Toploader. Some of them were actually driven, some of them were mocked up just so I could figure out which direction I wanted to go.
The C6 is just a big old hog of a trans though...I think I'd go with a nicely built C4.
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