almost heaven

I want to put in a racing seat with good head and side support. The Cobra Evolution S looks like the kind of seat I'm after.
http://www.cobraseatsusa.com/product...bra/prodID/661

I'm 6'2" and 230, so height and width of the seat are an issue. Width is easier to figure out based on seat dimensions. Height is harder since it has to do with mounting. Has anyone put in this seat, or anything perhaps similar ? Thanks for any advice on mounting.