SPECIFICATIONS
| Application | Specification | |||
|---|---|---|---|---|
| 2.5L (151") 4-Cyl. | ||||
| Ignition Timing | ||||
| Auto. Trans. | 8° BTDC at 650 RPM | |||
| Man. Trans. | 8° BTDC at 900 RPM | |||
| Spark Plugs | ||||
| Type | AC Delco R44TSX | |||
| Gap | .060" (1.5 mm) | |||
| Fuel System (Make & Type) | General Motors Model 300 TBI | |||
| Hot Idle | ||||
| Auto. Trans. | 475-525 | |||
| Man. Trans. | 750-800 | |||
| Fast Idle (Trans. In Neutral) | Non-Adjustable | |||
| 2.8L (173") V6 | ||||
| Ignition Timing | ||||
| Auto. Trans. | 10° BTDC at 600 RPM | |||
| Man. Trans. | 10° BTDC at 800 RPM | |||
| Spark Plugs | ||||
| Type | ||||
| Standard (Vins X & 1) | AC Delco R43CTS | |||
| High Output (Vins L & Z) | AC Delco R42CTS | |||
| Gap | .045" (1.1mm) | |||
| Fuel System (Make & Type) | Rochester E2SE | |||
| Hot Idle (1) | ||||
| Auto. Trans. | ||||
| Vin L & Z | 725/850 | |||
| Vin X & 1 | 600/750 | |||
| Man. Trans. | ||||
| Vin L & Z | 800/1100 | |||
| Vin X | 775/1100 | |||
| Vin 1 | 800/1000 | |||
| Fast Idle (Transmission In Neutral) | ||||
| Auto. Trans. | ||||
| Vin L & Z | 2700 RPM | |||
| Vin X & 1 | 2500 RPM | |||
| Man. Trans. | ||||
| Vin L, Z & 1 | 2600 RPM | |||
| Vin X | 2500 RPM | |||
| Cam Step Adjustment (All Models) | High | |||
| 5.0L (305") V8 | ||||
| Ignition Timing | ||||
| Carbureted | ||||
| Auto. Trans. | 6° BTDC at 500 RPM | |||
| Man. Trans. | 6° BTDC at 700 RPM | |||
| Fuel Injected | 6° BTDC at 475 RPM | |||
| Spark Plugs | ||||
| Type | AC Delco R45TS | |||
| Gap | .045" (1.1 mm) | |||
| Fuel System (Make & Type) | ||||
| Carbureted | Rochester E4ME | |||
| Fuel Injected | GM Model 400 TBI | |||
| Hot Idle (1) | ||||
| Carbureted | ||||
| Auto. Trans. | 500/650 | |||
| Man. Trans. | 700/800 | |||
| Fuel Injected | 475 | |||
| Fast Idle (Transmission In Neutral) | ||||
| Carbureted | ||||
| Auto. Trans. | 2200 RPM | |||
| Man. Trans. | 1800 RPM | |||
| Fuel Injected | Non-Adjustable | |||
| Cam Step (Auto. Trans .& Man. Trans) | High | |||
| (1) When an idle speed solenoid is used, the lower RPM is with the solenoid disconnected, the higher RPM is with the solenoid connected. | ||||
| (1) | When an idle speed solenoid is used, the lower RPM is with the solenoid disconnected, the higher RPM is with the solenoid connected. |
TUNE-UP SPECIFICATIONS