How many 9 second 396/375 alum head A/S A/SA

[FINESPLINE]

This past summer I attended a car show where I came across a 1970 Camaro automatic L78 396/375 car. He was the second registered owner of the car as his father ordered the car new and had all the paperwork. Can't remember the dealer that the car was ordered from but it did come out of south Jersey. At that time I did not realize what a rare combination that is but all I can add is , I seen it and spoke to the owner and he had what seems to be plenty of paperwork to document the cars existance.