My wife's old car. '66 Mustang

[chunger]

The T-5 should be fine. It's all about how you drive it. If you plan on dropping the clutch, or putting slicks on it, eh, maybe a T-5 isn't the right choice. For something you can drive 'normally' (whatever that means), it should be fine. And it's substantially smaller than a TKO, making fit much easier.