Approval Details

Valid E.O.


This Executive Order approved the specified parts on on September 10, 2003.
As of Tuesday, July 23rd, 2024 this Executive Order has not been overturned or superceeded.

Approved Parts

Part NumberModelsModification
100-7011989 and older vehicles equipped with a 4 BBL Holley carburetorThe PowerAid Throttle Body Spacer is an aluminum spacer plate, approximately one inch thick with machined helical grooves on the inside ports, and is installed under the vehicle's throttle body or carburetor.

This Executive Order may be listed as:
  • C.A.R.B.E.O. D-520-3
  • Executive Order 520-3 / D520-3
  • ARB # D-520-3
  • Executive Order No: D-520-3
  • C.A.R.B. No. D-520-3
  • Resolution D-520-3
For Free CARB Executive Order Status verification, email an image of the device Executive Order label as well as the Year/Make/Model and Test Group # of the vehicle to [email protected]

Download: Executive Order D-520-3 PDF

D-520-3 Document:

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