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 #1405
Rod/Jet Reference Chart
|
|
|
| REF #
| MAIN JET
| METERING ROD
| CHANGE FROM BASE
|
| 1 |
1428 (.100) |
1451 (070 x 047)* |
none - stock calibration |
|
*Some Have ID #695
|
| 2 |
1428 (.100) |
1450 (070 x 042) |
Rod |
| 3 |
1428 (.100) |
1449 (070 x 037) |
Rod |
| 4 |
1430 (.104) |
1458 (075 x 037) |
Rod & Jet |
| 5 |
1427 (.098) |
1448 (068 x 052) |
Rod & Jet |
| 6 |
1428 (.100) |
1452 (070 x 052) |
Rod |
| 7 |
1427 (.098) |
1445 (065 x 047) |
Rod & Jet |
| 8 |
1428 (.100) |
1448 (068 x 052) |
Rod |
| 9 |
1428 (.100) |
1446 (068 x 042) |
Rod |
| 10 |
1430 (.104) |
1459 (075 x 047) |
Rod & Jet |
| 11 |
1430 (.104) |
1455 (073 x 042) |
Rod & Jet |
| 12 |
1427 (.098) |
1441 (062 x 052) |
Rod & Jet |
| 13 |
1429 (.101) |
1448 (068 x 052) |
Rod & Jet |
| 14 |
1430 (.104) |
1457 (073 x 052) |
Rod & Jet |
| 15 |
1430 (.104) |
1456 (073 x 047) |
Rod & Jet |
| 16 |
1428 (.100) |
1445 (065 x 047) |
Rod |
| 17 |
1430 (.104) |
1452 (070 x 052) |
Rod & Jet |
| 18 |
1430 (.104) |
1451 (070 x 047)* |
Jet |
|
*Some Have ID #695
|
| 19 |
1430 (.104) |
1450 (070 x 042) |
Rod & Jet |
| 20 |
1426 (.095) |
1445 (065 x 047) |
Rod & Jet |
| 21 |
1427 (.098) |
1452 (070 x 052) |
Rod & Jet |
| 22 |
1428 (.100) |
1457 (073 x 052) |
Rod |
| 23 |
1428 (.100) |
1455 (073 x 042) |
Rod |
| 24 |
1427 (.098) |
1457 (073 x 052) |
Rod & Jet |
| 25 |
1428 (.100) |
1459 (075 x 047) |
Rod |
| 26 |
1427 (.098) |
1449 (070 x 037) |
Rod & Jet |
| 27 |
1426 (.095) |
1446 (068 x 042) |
Rod & Jet |
| 28 |
1427 (.098) |
1456 (073 x 047) |
Rod & Jet |
| 29 |
1427 (.098) |
1455 (073 x 042) |
Rod & Jet |
| 30 |
1429 (.101) |
1458 (075 x 037) |
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:
120-398 = .098" jet (Edelbrock p/n 1427).
120-400 = .100" jet (Edelbrock p/n 1428).
