GT3 seats...

[RedTele58]

I have factory GT3 seats in one car and an aftermarket set for another. My problem is not height, but the width of my arse. I'm 5'9", and wear a 38 inch waist and big shoulders, and I'm sure I'm 4-5 inches bigger than the seats are designed for. I'm OK with them for laps around the track or around town, but I wouldn't want to go cross country in them.

I have no experience w/ the Pole Position or some of the other race seats, but I do know they come in various widths and sizes. Additionally, I've read discussions some of the taller guys have w/ strap placement and fitting correctly on their shoulders, but that may not be a problem for you w/ factory belts.

I've read different posts from tall guys that bolting seats to the floor like you are talking about will give you the headroom you need.

Maybe Tom or another of the racer guys can give you an idea on some of the different seats and what may work for you.