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Speedy Squirrel Speedy Squirrel is offline
Rocket Scientist
 
Join Date: Jun 2008
Location: Detroit
Posts: 948
Those are only on the later 1986 to 1989 930s. The earlier ones used a vacumn and boost controlled "pressure control valve".
Old 12-08-2014, 06:50 AM
  Pelican Parts Catalog | Tech Articles | Promos & Specials    Reply With Quote #24 (permalink)