Allstar Performance ALL81300 User Manual

HEI Advance Curve Kit

INSTALLATION INSTRUCTIONS

Kit fits all GM HEI distributors using "E" clips to secure the center plate and is compatible with both
clockwise and counter clockwise rotation distributors.
IMPORTANT: This product may not adhere to emissions laws in certain states.

1. Remove the distributor cap and rotor.

2. Remove the stock advance springs, "E" clips, weights and center plate.

3. Clockwise rotation distributors: Install the new center plate as shown in Figure 1.
Counterclockwise rotation distributors: Turn the center plate and centrifugal weights over
from Figure 1. Replace "E" clips.

4. Prior to installing the centrifugal weights, select the bushing set from the two sets
provided that fits snugly on the weight pins. Press these bushings into the weights and
install the assemblies into the distributor.

5. Using graph in Figure 2, select the springs which correspond to desired advance curve.

6. After the advance springs have been installed, replace the rotor and distributor cap.

7. Prior to setting the ignition timing, remove the vacuum line from the vacuum advance
canister located on the distributor and plug end of the vacuum line. Set the engine idle at
750 RPM and set the ignition timing to stock setting. Refer to a repair manual or the
engine tune-up sticker that is located under the hood for timing specifications. After the
engine has been timed, reconnect the vacuum line to the vacuum advance. Readjust the
idle to factory specifications if necessary.

Note: To prevent advance until 10" of vacuum is reached,
use Chevrolet Part No. 1973511 Vacuum Pot Assembly to
eliminate any vacuum advance while accelerating.

FIGURE 1

FIGURE 2

CLOCKWISE ROTATION

Allstar Performance 8300 Lane Dr., Watervliet, MI 49098

Phone: [phone] Fax: [phone] www.allstarperformance.com

Form 1109 Page 1 of 1 Rev. 052311

IGNITION TIMING ADVANCE DEGREE

GOLD SPRINGS
BLACK SPRINGS
SILVER SPRINGS