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| Parnelli | |||
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 VPJ4 /CosworthDFV-V8 /Firestone(1974) |
 VPJ4 /CosworthDFV-V8 /Firestone (1975) |
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| VPJ4B /CosworthDFV-V8 /Goodyear(1976) |
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| Year | Entrant | Type | |
| 1974 | Vel's Parnelli Jones Racing | VPJ4 |  |
| 1975 | VPJ4 |    |
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| 1976 | VPJ4B |  |