Posted by jack cain on Tuesday, January 04, 2005 at 9:47PM :
In Reply to: 72, 428 CJ, headers C6OZ-6250BB cam, T-18 trans posted by chriscase on Tuesday, January 04, 2005 at 7:23PM :
I used to own a 1969 Mach 1 Mustang with a 428CJ engine. I sold it 1976 when the octane in gasoline slid below 100. The valves would clatter continually on 97 octane. The dweeb that I sold it to yanked out the 428 and installed a 351C. Go figure.