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I checked Auto Zone's web site and there's a half dozen different vacuum diagrams for a 79 F-250 with a 351M. The calibration code sticker is long gone. Any help would be greatly appreciated.
Rezvani's Latest Post-Apocalyptic Monster Is a Ford F-150 Raptor Underneath
Slideshow: Called the Fortress, the 850-horsepower pickup combines Raptor underpinnings with military-inspired features, survival equipment, and a starting price of $285,000.