Manufactered & Marketed through 1973. By 74, these were obsolete. The low performance was the big issue along with cost......These Came Out the Box ORANGE in color. (These weren't found on serious Street cars or Street-n-Strip cars).... CRAGAR had Orange headers a 1/2 decade before M/T.
Bill Thomas had Blue, others had various 'FAD' colors as well.
The info pictured is from an original 1972 Holley Mickey Thompson Catalog.
