Products to Compare (max of 3)
X
Compare These Parts
ALWAYS SECURE
America's Oldest Speed Shop ® Talk to the Experts. Call 800.979.0122, 7am-10pm, everyday.
Filters
Menu
Help Center
Help Center
x
Help Center

U.S.Order Line:

800.979.0122

(CST) 7am - 10pm

Race and Rod Tech Support

Mon-Fri 8am - 5pm

Canadian Order Line:

855.313.9180

International Order Line:

1.402.323.3200
Since 1952
Menu
x

HEI Advance Curve Kit

SAME DAY SHIPPING! Order within the next 5 hours 51 minutes and receive same day shipping

HEI Advance Curve Kit

Click image to enlarge

Please NOTE the following about this product:

  • This item is sold as a kit.

Details

Reviews

Q & A

What's in the Box

Modifies any GM HEI distributor with either clockwise or counterclockwise rotation and offers plenty of curve possibilities.  Center plate eliminates overcentering of centrifugal weights.  Comes complete with detailed instructions.

NOTE: Installation of this kit may alter emission levels.

550-929 Instructions (PDF) 

Customer Reviews

Rated 5 out of 5 by 1 reviewers.
RATING BREAKDOWN
1 reviews
5 Stars
1
4 Stars
0
3 Stars
0
2 Stars
0
1 Star
0
RECOMMEND THIS PRODUCT:

JE
Verified Purchaser
Verified Reviewer
Fairbury, NE

Great product

November 12, 2015
Allowed me to dial in the timing on my 383 for good horsepower but slow enough to avoid detonation on lower octane fuel. Combined this with an adjustable vac advance to improve my mpg.
Yes, I recommend this product.
Full Size Image

Was this review helpful? 0 0

Page 1 of 1

Product Q&A

1 questions : 1 answers

1 answers

Do i need different spark plugs

El Pastor
Burnet Tx.
December 17, 2015

Do i need different spark plugs

Answers

December 18, 2015
Eric
Expert
No you can continue to use the same spark plugs when using this advance curve kit.
Page 1 of 1

You may also be interested in:

Adjustable Vacuum Advance Kit, GM HEI Distributor
(Part #28799600)
                        

Adjust your GM HEI distributor for any driving condition. This kit allows you to change the amount of ignition vacuum advance for maximum part-throttle performance while preventing the harmful effects of spark knock (detonation). Dial in as much spark advance as conditions permit — add more advance under light load conditions to improve throttle response and fuel economy, or limit spark advance in high compression engines and high load conditions to eliminate knock.

  • Built-in stop prevents the adjustment screw from "backing out" like other designs
  • Easy to install
  • Includes 3/32" Allen wrench and easy-to-follow instructions

287-99600 Instructions (PDF)

Moroso 26100 Distributor Timing Indicator
(Part #54526100)
                        

Fast and accurate method of adjusting ignition timing without use of a timing light. Change timing quickly between heats. Fits all Chevy V8 and 90° V6 distributors. May require minor modification to some manifolds.

545-26100 Instructions (PDF)

HEI External Timing Adjustment Knob
(Part #91012344)
                        

This little jewel replaces the vacuum advance on an HEI distributor. This allows you to change the timing without having to loosen the distributor - just turn the knob.

Fits V8 engine HEI distributor only.

Seals-It FC-1001 French Distributor Clamp
(Part #6101001)
                        

"French" distributor clamps for Chevys provide superior clamping power and compensate for misalignment.

MSD 8412 Low Resistance Bushing for HEI Distributor
(Part #5478412)
                        With the introduction of our 20 Amp Extreme HEI Module, we needed an HEI Cap and Rotor that could withstand the high output. The answer was to mold our own HEI Cap, Rotor and Coil Cover. The Cap and Rotor will fit our HEI Pro-Billet Distributor, PN 8365,
    MSD 8428 GM HEI Weight And Spring Kit
    (Part #5478428)
                            This kit will help you achieve the solid ignition timing you need! The Kit comes with new advance weights, springs to set the rate of advance and new bushings. This is designed for the Street Fire HEI and stock style HEI Distributors. (Not for use with Billet and Pro-Billet MSD Distributors)

    Installation Instructions (PDF)

    • Fits Street-Fire HEI
    • Fits Stock Style HEI Distributors
    • Not for MSD Billet and Pro-Billet Distributors