Too tall?

I'm 6'3" and have signed up for the Performance Driving School next month. I got my Handbook and I cannot adjust my seat appropriately. My legs are not a problem as I can reach/depress the clutch all the way to the floor with my right foot. It is my upper torso and head. I have the seat reclined far enough back that I can comfortably reach the stearing wheel, but my head barely clears the headliner. I don't know if I can put a helmet on without having to "crunch" down some.
Any suggestions?
I saw this discussion on replacing seats and making room for tall drivers.
http://web2.pcasdr.org/phpBB2/viewtopic.php?t=603
Short of that, am I just SOL???
Any suggestions?
I saw this discussion on replacing seats and making room for tall drivers.
http://web2.pcasdr.org/phpBB2/viewtopic.php?t=603
Short of that, am I just SOL???