I should have pointed out that the pictures I have of the F-Headers are from the June 1960 Motor Life Magazine , on the 400 hp model. were they are doing their test drive. Headers as well all know can improve the power in the engine by 8 to 10 percent in draining the exhaust . That's were my interest came in. I have sent pictures of them via E-mail to anyone that wants them. Regards Meisner [Non-text portions of this message have been removed]