C6AZ-H part number is for the C7AE 9425-F casting number manifold.
It sure shocked me when my 428CJ picked up a couple tenths and 5 MPH when it was 70 pounds heavier. The difference was really noticeable.
Royce
1915 Model T Ford touring Black of course!
1967 Cougar GT 390 Cardinal Red / Black
1968 Cougar GTE 427 Augusta Green / Saddle
1968 Cougar GTE 427 Medium Blue Metallic / Dark Blue
