Demon 340 six pack factory?

Norm installed the 6 pack on the GSS package cars in 1971. In 1972, the supercharger was part of the package instead.
There you go.
Point is Mr. Norm sold all kinds of speed parts did all kinds of high HP tunes, and IF someone wanted to buy a six pac intake and carbs, ole Norm took their $ and said give a few more $$ and we will install and tune!! Those were the good ole days! The draft not included!??