Hi,
I remember seeing a pic of a 1965 Riviera ad where they mention the stock 401 325hp doing a 16 second 1/4 mile and the optional 425 Supercat doing a 15.5 second 1/4
I think? the rated numbers were off to the side of the car in the pic and not in the lower other tech info.
No matter how much I search for this particular Riv ad I can't find it.
Does anyone might have a pic?