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INDIANAPOLIS, IN - MAY 29: Al Unser climbs into his Parnelli VPJ6B 001/Cosworth TC during practice for the Indianapolis 500 at the Indianapolis Motor Speedway in Indianapolis, Indiana, on May 29, 1977.
INDIANAPOLIS, IN - MAY 29: Al Unser climbs into his Parnelli VPJ6B 001/Cosworth TC during practice for the Indianapolis 500 at the Indianapolis Motor Speedway in Indianapolis, Indiana, on May 29, 1977.
Filename: IND177Indy-g10.jpg
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