Allstar Performance Carb Shear Plate - Holley 4150 - 2.125" Bore PD800K Frame Boss / Spuds

Frame Boss / Spuds

75 in Round Port

3/8 in Diameter

1978-1984 Oldsmobile Cutlass Calais

3 in Carb Flange

Allstar Performance Carb Shear Plate - Holley 4150 - 2.125" Bore PD800K Frame Boss / SpudsCarb 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. Specialty items for the Shop, Trailer and Track. The Allstar Performance brand offers thousands of hard to find,