ACCEL 31035 distributor vacuum advance for the 1988-1990 Chevrolet C1500 5.0L / 5.7L and other vehicles lets you set both the amount and the rate of ignition advance.
- Gives a wide range of adjustment to the amount and rate of ignition advance
- Designed to give maximum spark advance while helping prevent detonation, or pinging
- Helps increase horsepower and throttle response
- Made for GM/HEI distributors with vacuum advance
Pinging under load, sluggish throttle response or poor fuel economy can be signs of an ignition advance problem, but they can also come from elsewhere. Before you replace the vacuum advance, rule out a leaking vacuum hose or a fault elsewhere in the distributor, since a new unit will not cure those.
Vehicles it fits include the 1988-1990 Chevrolet K1500 5.0L / 5.7L and the 1975-1985 Chevrolet Impala 5.7L, along with many other Buick, Chevrolet, GMC, Oldsmobile and Pontiac models. Open the Buyer's Guide tab to check your exact model and engine.
Specifications
- Type: adjustable vacuum advance
- Quantity per vehicle: 1
- Material: steel
- Country of origin: United States
In the box: one vacuum advance, an allen wrench and instructions. This listing holds one unit, and the vehicle takes one.
Installation notes
- The amount and rate of advance are adjustable with the allen wrench.
- The instructions in the kit cover the adjustment.
