Riley Stair's Holley EFI-Powered '70 Pontiac Trans Am Has to Be Seen to Be Believed
Working under the carport beside his parents' house, Riley Stair built this absolutely insane '70 Pontiac Trans Am from the ground up. It's stretched to a full seven feet wide in the front and rear and rides on ridiculous 16x12 Panasport wheels from the 1990s. More of a race car than a street machine, it features a methanol-burning Motor Machine-built 400-cubic-inch big-block controlled by a complete Holley Dominator EFI system and a 4-speed G-Force transmission out of a NASCAR stock car. The short-stroke naturally aspirated powerplant has canted-valve heads, titanium valves, an unbelievable 16.2:1 compression ratio, and revs to 10,000 rpm on its way to more than 700 horsepower, and the drastically pushed back engine location necessitated one-of-a-kind 8-to-1 headers and a trick side-exit configuration.
Stair basically taught himself to weld as he went along, creating the outrageous machine from his imagination and doing virtually everything himself. The slammed-to-the-ground stance, tube chassis, full roll cage, and Lexan windows only enhance the race-car vibe (it even has an on-board fire extinguisher). He hand-made the steel flares himself from steel sheet and hand-formed the stock-car-style interior, crafting easily removed aluminum panels that are held in place by Dzus fasteners. He monitors all engine vitals via a fully customizable 7'' Holley EFI Digital Dash mounted on the steering column!
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