[Tom Goldman]

The series 55 seat is 18 degree is the most common angle used for Drag racing applications.
Its comparable to most factory seats.
The 55 series is available up to 20 " wide , big enough for just about anyone.
Don't use the series 16 seats , they are flimsy ,light weight pieces.
depending on your body style there are several company's besides Kirkey that make sturdy ,adjustable seat car specific mounting kits for them . .....I prefer Racecraft for the cars that I don't make custom ones for .