Posted in E Body Mopar Parts for Sale, For E Bodies Only New Speed Demon 850 cfm carburetor 1563010VE ksipes1 January 20, 2014 New in the box, Speed Demon 850 cfm Carburetor with vacuum secondary's. Dual braided fuel line also included. Summit price is $504 plus shipping just for the carb. $400 plus shipping and PayPal preferred. Located in South Florida. Author: ksipes1