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- USA
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Ships within 48 hours · Estimated delivery Jul 4 - Jul 9
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Description
Chev HEI Distributor Advance Curve Kit # 66948CChev HEI Distributor Advance Curve Kit # 66948C Distributor Advance, Mechanical, GM, HEI, Kit Advance Weights Included: Yes Advance Limit Bushings Included: Yes Spring Quantity: 6 Adjustable Vacuum Advance Included: No Quantity: Sold as a kit. Notes: Fits GM type HEI distributors. Will not work with computer controlled HEI. Proform HEI Advance Curve Kits These HEI advance curve kits from Proform are offered with three sets of springs for custom
Chev HEI Distributor Advance Curve Kit # 66948CDistributor Advance, Mechanical, GM, HEI, Kit
Advance Weights Included:
Yes
Advance Limit Bushings Included:
Yes
Spring Quantity:
6
Adjustable Vacuum Advance Included:
No
Quantity:
Sold as a kit.
Notes:
Fits GM type HEI distributors. Will not work with computer controlled HEI.
Proform HEI Advance Curve Kits
These HEI advance curve kits from Proform are offered with three sets of springs for custom-curving your own distributor. They're a must for modified engines.
Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
- Standard Shipping : 3-10 business days
- If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
- To process your return/exchange, please contact us at [email protected]
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4.4 ★★★★★
Based on 1340 reviews
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Product Reviews
★★★★★ 5
Get this If your hot in bed
Color: Champagne, Size: Queen
Very nice and silky.helps keep me cooler.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 9, 2026
★★★★★ 4
Cool not cold
Color: Light Gray, Size: Queen
Super silky like material. Comfy and fits pillow perfectly. Wish it could be a more cold then cool.
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Reviewed in the United States on June 1, 2026
★★★★★ 3
It’s ok could be cooler
Color: Light Gray, Size: Queen
Decent — could be cooler. They’re a nice color and texture. It fit my pillows well no annoying zippers it’s nice to sleep on and stay in place.
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Reviewed in the United States on March 8, 2026
★★★★★ 5
Comfort
Color: Champagne, Size: Queen
What a lifesaver, great feel, and awesome cooling feel
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Reviewed in the United States on June 2, 2026
★★★★★ 5
Cool bedding
Color: Champagne, Size: Queen
As advertised nice and soft. But most of all cool. It really stays cool, especially on warm nights. A.
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Reviewed in the United States on April 26, 2026