{"product_id":"c3-1978-1979-corvette-vacuum-advance-1978-1980-vacuum-advance-1978-1979-l82-or-calif-211346","title":"C3 1978-1979 Corvette Vacuum Advance - 1978-1980 Vacuum Advance \u0026 1978-1979 L82 or Calif","description":"\u003cp\u003eThis vacuum advance unit adjusts ignition timing with engine vacuum on the distributor of 1978-1979 Corvettes with the L82 or California applications listed in the title. A ruptured diaphragm hurts fuel economy and throttle response, so replacing the advance helps restore proper timing behavior.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eFeatures\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eVacuum advance for the distributor\u003c\/li\u003e\n\u003cli\u003eListed for 1978-1979 L82 or California cars\u003c\/li\u003e\n\u003cli\u003eSold as a single unit\u003c\/li\u003e\n\u003cli\u003eRestores timing advance at part throttle\u003c\/li\u003e\n\u003cli\u003eCan improve drivability and fuel economy\u003c\/li\u003e\n\u003cli\u003eReplaces a leaking or failed diaphragm\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eFitment and details\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eFitment:\u003c\/strong\u003e 1978-1979 Chevrolet Corvette\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSubmodels:\u003c\/strong\u003e Base, Indianapolis 500 Pace Car, Silver Anniv Ed\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eQuantity per Vehicle:\u003c\/strong\u003e 1 EA\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"CA7","offers":[{"title":"Default Title","offer_id":67671247946093,"sku":"A3211346","price":32.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0032\/6683\/8574\/files\/211346_1.jpg?v=1791933277","url":"https:\/\/www.westcoastcorvette.com\/products\/c3-1978-1979-corvette-vacuum-advance-1978-1980-vacuum-advance-1978-1979-l82-or-calif-211346","provider":"WestCoastCorvette.com","version":"1.0","type":"link"}