• 1"open carbon fiber spacer made in the USA 
• Fits 2bl Holley Motorcraft and Autolite carbs 4412, 2150, 2300 and other similar carbs
• Bolt pattern is 3.460 x 5.160
• Very light weight Extremely strong and temperature resistant
• Includes Felpro gasket and stud kit as pictured.
• Can be painted ,clear coated or used as is.
• If you need a 2 bore spacer check our other listings
• Items ship in one business day many times the same day payment is received