All calibration kits include an assortment of metering rods and jets, one pair of metering rod retaining springs and a complete assortment of step-up springs (except Calibration Kit #1485 which is designed for a specific application).
Application
Metering Rods (Pair)
Metering Jets (Pair)
Emissions
Part #
Performer Series® Carburetors (A)
#1407, #1410, #1412 & #1413
.065" x .037", .065" x .047", .068" x .047", .073" x .047", .073" x .052"
