Edelbrock Performer Series Carburetor

Step 1: Select the combination of Cruise Mode and Power Mode fuel-metering stages desired for your calibration. Normal calibration changes will be within the gridded diagonal area. That is, Cruise and Power mode changes should be in the same direction (either richer or leaner) and usually by the same amount.

Step 2: Find the number that is nearest your desired combination. This is your Calibration Reference Number.

Step 3: Go to the next page. Find the Calibration Reference Number you have just selected in Step 2. Listed will be the Main Jet and Metering Rod required to achieve the desired fuel metering for the Primaries.

 

Model #1406 Rod/Jet Reference Chart
REF #	MAIN JET	METERING ROD	CHANGE FROM BASE
1	1427 (.098)	1459 (075 x 047)	none - stock calibration
2	1426 (.095)	1449 (070 x 037)	Rod & Jet
3	1427 (.098)	1458 (075 x 037)	Rod
4	1425 (.092)	1446 (068 x 042)	Rod & Jet
5	1426 (.095)	1453 (071 x 047)	Rod & Jet
6	1425 (.092)	1447 (068 x 047)	Rod & Jet
7	1426 (.095)	1456 (073 x 047)	Rod & Jet
8	1426 (.095)	1455 (073 x 042)	Rod & Jet
9	1426 (.095)	1454 (073 x 037)	Rod & Jet
10	1425 (.092)	1451 (070 x 047)	Rod & Jet
11	1425 (.092)	1453 (071 x 047)	Rod & Jet
12	1426 (.095)	1459 (075 x 047)	Jet
13	1425 (.092)	1449 (070 x 037)	Rod & Jet
14	1426 (.095)	1458 (075 x 037)	Rod & Jet
15	1426 (.095)	1448 (068 x 052)	Rod & Jet
16	1426 (.095)	1447 (068 x 047)	Rod & Jet
17	1427 (.098)	1453 (071 x 047)	Rod
18	1429 (.101)	1459 (075 x 047)	Jet
19	1427 (.098)	1449 (070 x 037)	Rod
20	1425 (.092)	1445 (065 x 047)	Rod & Jet
21	1426 (.095)	1451 (070 x 047)	Rod & Jet
22	1426 (.095)	1446 (068 x 042)	Rod & Jet
23	1427 (.098)	1455 (073 x 042)	Rod
24	1427 (.098)	1456 (073 x 047)	Rod
25	1427 (.098)	1454 (073 x 037)	Rod

Secondary Metering

The factory calibration jet is shown in the center column. For leaner or richer calibration use the jet # indicated in the appropriate column.

 

3 Stages Lean (12%)	2 Stages Lean (8%)	1 Stage Lean (4%)	SECONDARY Stock Calibration	1 Stage Rich (4%)	2 Stages Rich (8%)	3 Stages Rich (12%)
JET #1423 (.086)	JET #1424 (.089)	JET #1425 (.092)	JET #1426 (.095)	JET #1427 (.098)	JET #1429 (.101)	JET #1430 (.104)

Main Jet I.D.-All Edelbrock jets have "120-"prefix. The last three digits minus 300 = actual jet size.

Examples:
120-398 = .098" jet (Edelbrock p/n 1427).
120-401 = .101" jet (Edelbrock p/n 1429).