Allstar Performance base plate inserts, 1.000, 4pk, for 1/2in spacer, in race car induction systems. Enhances carb spacer fitment for better airflow in racing. Hand-tool compatible for track use. Carburetor base plate inserts are 1.000 inch i.d and 1/2 inch tall. Sold as one set of 4 pieces. The inserts are designed for use with Allstar part 26060 adjustable carburetor base plate. .
