Vintage

1978 Indy 500 winner Al Unser Sr. also was the first driver to win an Indy car race with the Cosworth DFX engine, at Pocono in 1976

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Date taken

May 28, 1978

1978 Indy 500 winner Al Unser Sr. also was the first driver to win an Indy car race with the Cosworth DFX engine, at Pocono in 1976

1978 Indy 500 winner Al Unser Sr. also was the first driver to win an Indy car race with the Cosworth DFX engine, at Pocono in 1976