This lower Retro Plate from Good Vibrations is designed to move a Roots-style blower back 2.25". This allow better, smoother airflow into the manifold and a more balanced engine. Manufactured from .450 thick billet aluminum for strength. 

Includes all hardware including: Aluminum Blower Studs, O-ring material and Grade 8 bolts.

For more information, contact www.GoodVibrationsRacing.com