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1957 Pontiac Service News, Triple two barrel carburetor information dated March 1957, It measure 8 X 11 inches, with 12 pages total full of information! This "reprint" Pontiac Service News bullitin is specific for just the Pontiacs, It discuss and show illustrations for adjustments and specifications and the throttle linkage for the Tri-Power system. This was the service manual update that was mailed to all the Pontiac Service Centers and mechanics for the latest updated and tech info of its time. Full of detailed information for anyone who needs to maintain or set up this Pontiac Tri-Power system.

Very informative and a "must have" to service and maintain these Tri-Power units.