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 #1404 Rod/Jet Reference Chart
REF #	MAIN JET	METERING ROD	CHANGE FROM BASE
1	1423 (.086)	1460 (065 x 052)	none - stock calibration
2	1423 (.086)	1455 (065 x 047)	Rod
3	1423 (.086)	1444 (065 x 037)	Rod
4	1423 (.086)	1461 (065 x 057)	Rod
5	1422 (.083)	1441 (062 x 052)	Rod & Jet
6	1423 (.086)	1463 (067 x 055)	Rod
7	1423 (.086)	1448 (068 x 052)	Rod
8	1423 (.086)	1447 (068 x 047)	Rod
9	1423 (.086)	1446 (068 x 042)	Rod
10	1422 (.083)	1463 (067 x 055)	Rod & Jet
11	1422 (.083)	1460 (065 x 052)	Jet
12	1422 (.083)	1462 (067 x 049)	Rod & Jet
13	1423 (.086)	1452 (070 x 052)	Rod
14	1423 (.086)	1451 (070 x 047)	Rod
15	1423 (.086)	1450 (070 x 042)	Rod
16	1422 (.083)	1438 (058 x 052)	Rod & Jet
17	1422 (.083)	1437 (057 x 049)	Rod & Jet
18	1423 (.086)	1441 (062 x 052)	Rod
19	1423 (.086)	1443 (063 x 047)	Rod
20	1423 (.086)	1442 (063 x 037)	Rod
21	1424 (.089)	1445 (065 x 047)	Rod & Jet
22	1424 (.089)	1460 (065 x 052)	Jet
23	1423 (.086)	1439 (060 x 052)	Rod
24	1423 (.086)	1440 (060 x 057)	Rod
25	1422 (.083)	1436 (055 x 055)	Rod & Jet
26	1424 (.089)	1441 (062 x 052)	Rod & Jet
27	1424 (.089)	1443 (063 x 047)	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 #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:
120-386 = .086" jet (Edelbrock p/n 1423).
120-401 = .101" jet (Edelbrock p/n 1429).