9 inch front drum brakes

The Butch Leal /California Flash /B/MP Hemi Duster ran 9.50's @ 150 mph back in the 70's with those 9" brakes. But a set of Wilwoods would be a great upgrade. With a re-designed a few years ago, the hub is no longer moved significantly outward (maybe +.010") and come with 4" and 4.5" bolt circle .....win , win, win !!!