I fitted the S&S vented Capri kit within my std 13" steel wheels back in the early 90's. They supplied a couple of thin wheel spacers with it and said that the calipers would need a bit of "fettling" to clear any of the wheels' high spots. It only took about 5 minutes with a file. If I'd had the std alloys they said I wouldn't have needed the spacers or the file.
IMHO the larger swept volume of the larger front brakes definitely needs the uprated master cylinder / servo combo and braided hoses. The brake pedal travel was too much for me without it.
Is the latest S&S kit Ford kit still based on the Capri items?
Adam
TR7 V8 DHC Jaguar Solent Blue. 9.35cr Range Rover V8, Holley 390cfm, JWR Dual Port, 214 Cam, Lumention, Tubular Manifolds, S/S Single Pipe Exh, 3.08 Rear, 200lb Spax & PolyBushes all round, Anti- Dive, Strut-Top Roller Bearings, Capri Vented Discs & Calipers, Braided Hoses, 4 Speed Rear Cylinders, Uprated Master Cylinder & Servo, AT 5 Spokes and Cruise Lights, S/S Heater Pipes, Replacement Fuel Tank. No Door Stickers. Mine since July 1986, V8 from 1991