Check out page 94 of the May, 1963 Hot Rod magazine: in summing up their 16 page article about the 1963 Winternationals, Hot Rod said, "Not a seat had been vacated by the capacity crowd until the very last race (the gates had been closed because of a full house just after noon on Sunday) and the dispersing crowd was a thrilled one indeed".
BTW, Jim Dunn won his class - AA/A in a Chevy-powered Fiat - and was runnerup in Middle Eliminator; Connie Kalitta was runnerup to John Peters in Top Eliminator (AA/D); Don Garlits won Top Fuel and had Low ET at 8.11 seconds in AA/FD, while Norm Weekly had Top Speed of the meet at 188.66 MPH in his AA/FD.
Fred Simmonds
GM Racing