I've got a bunch of new Westinghouse wide flute bulbs in various boxes I believe. Let me see if I can find them. My car probably came with GE bulbs but I wasn't paying those prices. When I bought these Westinghouse they were dirt cheap.

67 Coronet 500 9.610 @ 139.20 mph
67 Coronet 500 (street car) 14.82 @ 94 mph
69 GTX (clone) - build in progress......