Overview Reviews Product Description Metering Plate - Secondary - 0.073 in Main Hole - 0.029 in Idle Hole - Gasket Included - Aluminum - Natural - Holley 4160 Carburetors - Each Product Videos Product Reviews Write a Review Write a Review × Holley Metering Block Rating * Select Rating 1 star (worst) 2 stars 3 stars (average) 4 stars 5 stars (best) Name Email * Review Subject * Comments *