Holley Secondary Metering Plates Product images may differ from actual product appearance. Many Holley carburetors use a secondary metering plate with drilled restrictions rather than a secondary metering block with removable jets. When recalibrating the secondary side of such a carb, the secondary metering plate must be changed.

510-134-21

Secondary Metering Plate Main hole .081'' Idle hole .040'' View this item

$31.99 Ships in 24hrs

510-134-37

Secondary Metering Plate Main hole .073'' Idle hole .031'' View this item

$22.99 Ships 02/22/12

510-134-39

Secondary Metering Plate Main hole .073'' Idle hole .029'' View this item

$29.99 Ships 02/22/12

510-134-8

Secondary Metering Plate Main hole .067'' Idle hole .026" View this item

$29.99 Ships 02/22/12

510-134-9

Secondary Metering Plate Main hole .067'' Idle hole .031'' View this item

$31.99 Ships

510-34R-12279AMP

Secondary Metering Plate For PN[0-80570] View this item

$69.99 Ships 02/22/12

510-34R9716-12

Secondary Metering Plate Main hole .076'' Idle hole .031'' View this item

$26.99 Ships

510-34R9716-27

Secondary Metering Plate Main hole .089'' Idle hole .040'' View this item

$19.99 Ships

510-34R9716-3

Secondary Metering Plate Main hole .055'' Idle hole .026'' View this item

$29.99 Ships 02/22/12

510-34R9716-6

Secondary Metering Plate Main hole .070'' Idle hole .026'' View this item

$27.99 Ships 02/16/12