Shear Plate 4500 2.125 Bore ALL25973

Allstar Shear Plate 4500 2.125 Bore ALL25973Carb plates with built-in shear design help maximize performance on race engines with a large amount of cam overlap by creating a dam under the throttle plates, helping to build low pressure while improving vacuum signal to the carb. 1/2" tall plates are machined from 6061-T6 aluminum and clear anodized to protect against corrosion.