seat heights!!!!!! i am tall.... 69 camaro

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I don't have any seats in particular I want in mind. I just need more head clearance. My head scraps the roof and I'm gonna need to where a helmet when I go down the track.

I have a 69 Camaro with I think 3rd gen seats in it.

I have thought about butting them right to the floor. But I would like my wife to beable to drive it once in a while.