Installing the dual master cylinder on an early Avanti results in the hood contacting the MC Cap..... You have to play with the spacer washers between the booster and where the booster bolts to the firewall. i.e. take the washers on the bottom out and leave the washers in on the top and then it noses down just enough to fit. This usaully occurs on early cars that have an extra rib on the underside of the hood. (kimm@financialprtnr.com) Kim Miller March 2001 ---------------------------------- Autospecialties New Master Cylinder part # 83014. Bought it from Autopartsgiant.com. about $48. Application is 72 Imperial. It's a rectangular flange 4 bolt master. I plumbed the hydraulic brake switch in the front brake line. The car has good pedal feel and no weird lock up issues. ---------------------------------