1,200 horsepower 727

You should tos sthe shield. SFI rating or not it won't stop a drum explosion. but - the way to stop it is to use a billet steel high gear clutch drum. Although - if you're under 2500lbs - I'd say run an Ultraglide. You won't ever break it. At 1200hp in a racing environment I'd worry that you'll need to build two for a season.