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 #1409 Rod/Jet Reference Chart
REF #	MAIN JET	METERING ROD	CHANGE FROM BASE
1	1427 (.098)	1447 (068 x 047)	none - stock calibration
2	1427 (.098)	1446 (068 x 042)	Rod
3	1429 (.101)	1456 (073 x 047)	Rod & Jet
4	1427 (.098)	1450 (070 x 042)	Rod
5	1427 (.098)	1451 (070 x 047)	Rod
6	1427 (.098)	1452 (070 x 052)	Rod
7	1426 (.095)	1443 (063 x 047)	Rod & Jet
8	1426 (.095)	1460 (065 x 052)	Rod & Jet
9	1425 (.092)	1443 (063 x 047)	Rod & Jet
10	1426 (.095)	1452 (070 x 052)	Rod & Jet
11	1426 (.095)	1447 (068 x 047)	Jet
12	1425 (.092)	1444 (065 x 037)	Rod & Jet
13	1427 (.098)	1456 (073 x 047)	Rod
14	1429 (.101)	1459 (075 x 047)	Rod & Jet
15	1427 (.098)	1454 (073 x 037)	Rod
16	1429 (.101)	1458 (075 x 037)	Rod & Jet
17	1430 (.104)	1459 (075 x 047)	Rod & Jet
18	1430 (.104)	1456 (073 x 047)	Rod & Jet
19	1427 (.098)	1444 (065 x 037)	Rod
20	1429 (.101)	1451 (070 x 047)	Rod & Jet
21	1427 (.098)	1445 (065 x 047)	Rod
22	1427 (.098)	1460 (065 x 052)	Rod
23	1426 (.095)	1441 (062 x 052)	Rod & Jet
24	1426 (.095)	1439 (060 x 052)	Rod & Jet
25	1426 (.095)	1438 (058 x 052)	Rod & Jet
26	1427 (.098)	1441 (062 x 052)	Rod
27	1427 (.098)	1443 (063 x 047)	Rod
28	1429 (.101)	1462 (067 x 049)	Rod & Jet
29	1430 (.104)	1452 (070 x 052)	Rod & Jet

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 #1425 (.092)	JET #1426 (.095)	JET #1427 (.098)	JET #1429 (.101)	JET #1430 (.104)	JET #1431 (.107)	JET #1432 (.110)

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).