84tbird 5.0 cam change question November 25, 2005, 12:56:14 AM can my stock 84 tbird heads have enough clearance to use the FMS cam M-6250-A312DURATION VALVE LIFTINT. EXH. INT. EXH290° 300° 0.472" 0.496"214° 224°i would also like to use a new set of roller rockers. probably the M-6564-E351 1.70:1.doe's any one know if that will work without sending my engine to a grave? Quote Selected