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USA
- USA
- CAN
- USA
- CAN
Ships within 48 hours · Estimated delivery Jul 11 - Jul 16
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For Your Every Summer RSVP, with Code: SUMMER15
Description
Adjustable Vacuum Advance for GM HEI Distributors - 31035Overview: This unit permits a seamless wide range of adjustment to both amount and rate of ignition advance. This unit helps increase horsepower and throttle response. It provides maximum spark advance while preventing detonation or "pinging". This kit includes an allen wrench for easy adjustment along with instructions. Features: Adjustable Vacuum Advance Increases Horsepower And Throttle Response Includes Allen Wrench For Adjustments Application:
Overview:
This unit permits a seamless wide range of adjustment to both amount and rate of ignition advance. This unit helps increase horsepower and throttle response. It provides maximum spark advance while preventing detonation or "pinging". This kit includes an allen wrench for easy adjustment along with instructions.
Features:
- Adjustable Vacuum Advance
- Increases Horsepower And Throttle Response
- Includes Allen Wrench For Adjustments
Application:
| Year | Make | Model | Submodel | Engine Size |
|---|---|---|---|---|
| 1976 | Pontiac | LeMans | 455/7.5 V8 | |
| 1975 - 1976 | Pontiac | Firebird | 455/7.5 V8 | |
| 1975 - 1976 | Pontiac | Grand LeMans | 455/7.5 V8 | |
| 1976 | Buick | LeSabre | 455/7.5 V8 | |
| 1975 - 1976 | Oldsmobile | Cutlass | 455/7.5 V8 | |
| 1975 - 1976 | Oldsmobile | Cutlass Supreme | 455/7.5 V8 | |
| 1975 - 1976 | GMC | G25 | 454/7.4 V8 | |
| 1976 | GMC | G35 | 454/7.4 V8 | |
| 1976 | GMC | Jimmy | 454/7.4 V8 | |
| 1976 | GMC | K15 | 454/7.4 V8 | |
| 1980 | GMC | K1500 | 454/7.4 V8 | |
| 1979 - 1986 | GMC | C2500 Suburban | 454/7.4 V8 | |
| 1975 - 1978 | GMC | C35 | 454/7.4 V8 | |
| 1979 - 1986 | GMC | C3500 | 454/7.4 V8 | |
| 1975 - 1980 | Chevrolet | C10 Suburban | 454/7.4 V8 | |
| 1975 - 1986 | Chevrolet | C20 | 454/7.4 V8 | |
| 1975 - 1986 | Chevrolet | C20 Suburban | 454/7.4 V8 | |
| 1975 - 1986 | Chevrolet | C30 | 454/7.4 V8 | |
| 1975 - 1978 | GMC | C25 | 454/7.4 V8 | |
| 1979 - 1986 | GMC | C2500 | 454/7.4 V8 | |
| 1975 - 1978 | GMC | C25 Suburban | 454/7.4 V8 | |
| 1976 - 1978 | Chevrolet | K5 Blazer | 454/7.4 V8 | |
| 1975 - 1980 | Chevrolet | C10 | 454/7.4 V8 | |
| 1976 - 1978 | Chevrolet | K20 | 454/7.4 V8 | |
| 1985 | Chevrolet | K20 Suburban | 454/7.4 V8 | |
| 1977 - 1986 | Chevrolet | K30 | 454/7.4 V8 | |
| 1975 | Chevrolet | Malibu | 454/7.4 V8 | |
| 1976 - 1980 | Chevrolet | K10 | 454/7.4 V8 | |
| 1976 | Chevrolet | G20 | 454/7.4 V8 | |
| 1975 - 1976 | Chevrolet | G30 | 454/7.4 V8 | |
| 1976 - 1978 | GMC | K25 | 454/7.4 V8 | |
| 1976 - 1977 | GMC | K25 Suburban | 454/7.4 V8 | |
| 1987 - 1988 | Chevrolet | R30 | 454/7.4 V8 | |
| 1989 | Chevrolet | R3500 | 454/7.4 V8 | |
| 1987 - 1988 | Chevrolet | V30 | 454/7.4 V8 | |
| 1989 | Chevrolet | V3500 | 454/7.4 V8 | |
| 1975 - 1978 | GMC | C15 | 454/7.4 V8 | |
| 1979 - 1980 | GMC | C1500 | 454/7.4 V8 | |
| 1975 - 1978 | GMC | C15 Suburban | 454/7.4 V8 | |
| 1979 - 1980 | GMC | C1500 Suburban | 454/7.4 V8 | |
| 1987 - 1989 | GMC | V3500 | 454/7.4 V8 | |
| 1979 - 1986 | GMC | K3500 | 454/7.4 V8 | |
| 1987 - 1989 | GMC | R3500 | 454/7.4 V8 | |
| 1975 | GMC | Sprint | 454/7.4 V8 | |
| 1977 | Pontiac | LeMans | 403/6.6 V8 | |
| 1977 - 1979 | Pontiac | Catalina | 403/6.6 V8 | |
| 1977 - 1979 | Pontiac | Firebird | 403/6.6 V8 | |
| 1977 | Pontiac | Grand LeMans | 403/6.6 V8 | |
| 1977 - 1979 | Oldsmobile | Delta 88 | 403/6.6 V8 | |
| 1977 - 1978 | Buick | LeSabre | 403/6.6 V8 | |
| 1978 - 1979 | Oldsmobile | 98 | 403/6.6 V8 | |
| 1978 - 1979 | Oldsmobile | Custom Cruiser | 403/6.6 V8 | |
| 1977 | Buick | Century | 403/6.6 V8 | |
| 1977 | Oldsmobile | Cutlass | 403/6.6 V8 | |
| 1977 | Oldsmobile | Cutlass Supreme | 403/6.6 V8 | |
| 1975 | GMC | Sprint | 402/6.6 V8 | |
| 1975 - 1978 | GMC | G25 | 400/6.6 V8 | |
| 1979 - 1980 | GMC | G2500 | 400/6.6 V8 | |
| 1975 - 1978 | GMC | G35 | 400/6.6 V8 | |
| 1979 | GMC | G3500 | 400/6.6 V8 | |
| 1975 - 1979 | GMC | Jimmy | 400/6.6 V8 | |
| 1975 - 1978 | GMC | K15 | 400/6.6 V8 | |
| 1979 - 1980 | GMC | K1500 | 400/6.6 V8 | |
| 1975 - 1978 | GMC | K15 Suburban | 400/6.6 V8 | |
| 1975 - 1977 | Pontiac | LeMans | 400/6.6 V8 | |
| 1976 - 1978 | GMC | C35 | 400/6.6 V8 | |
| 1979 | GMC | C3500 | 400/6.6 V8 | |
| 1976 | GMC | G15 | 400/6.6 V8 | |
| 1979 | GMC | G1500 | 400/6.6 V8 | |
| 1977 - 1978 | Pontiac | Catalina | 400/6.6 V8 | |
| 1975 - 1979 | Pontiac | Firebird | 400/6.6 V8 | |
| 1975 - 1977 | Pontiac | Grand LeMans | 400/6.6 V8 | |
| 1976 - 1980 | Chevrolet | C20 | 400/6.6 V8 | |
| 1976 - 1980 | Chevrolet | C20 Suburban | 400/6.6 V8 | |
| 1976 - 1978 | Chevrolet | C30 | 400/6.6 V8 | |
| 1976 - 1978 | GMC | C25 | 400/6.6 V8 | |
| 1979 | GMC | C2500 | 400/6.6 V8 | |
| 1978 | GMC | C25 Suburban | 400/6.6 V8 | |
| 1980 | GMC | C2500 Suburban | 400/6.6 V8 | |
| 1975 - 1979 | Chevrolet | K5 Blazer | 400/6.6 V8 | |
| 1976 - 1980 | Chevrolet | C10 | 400/6.6 V8 | |
| 1975 - 1980 | Chevrolet | K20 | 400/6.6 V8 | |
| 1975 - 1980 | Chevrolet | K20 Suburban | 400/6.6 V8 | |
| 1977 - 1980 | Chevrolet | K30 | 400/6.6 V8 | |
| 1975 | Chevrolet | Laguna | 400/ |
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]
- Please click here for more details>>> Return & Exchange Policy
4.0 ★★★★★
Based on 1949 reviews
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Product Reviews
★★★★★ 5
Great product! Perfect size.
Size: 7.125 x 2.875, Color: Brushed Metal
Perfect size! Fits two sponges and great suction with three contact suction cups.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 24, 2026
★★★★★ 5
MoreThan Just A Shelf
Color: 1set, Size: 24inch
Absolutely love this Helsin 3-Tier Industrial Pipe Shelf! It completely transformed a blank wall in my home office into a stylish, functional display area that’s equal parts rustic charm and industrial cool. The real wood shelves are thick, sturdy, and beautifully finished with that perfect rustic vibe. Combined with the heavy-duty black metal piping, this unit feels rock solid once mounted. Zero wobble. I was honestly surprised at how simple the installation was. All the parts were included, instructions were clear, and it went up faster than expected. I had it securely mounted to studs in under 10 minutes. This shelf works just as well for books, plants, décor, or collectibles. I’ve got a mix of framed photos, succulents, and vintage finds on mine, and it handles the weight with no issue. It gives vertical storage without eating up floor space, and the combination of rustic wood and industrial pipe makes it a true statement piece. I’ve had multiple compliments already! I could see this shelf fitting perfectly in living rooms, kitchens, offices, or even bathrooms. It’s compact enough for smaller spaces but bold enough to stand out in larger rooms. Highly recommended!
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Reviewed in the United States on August 5, 2025
★★★★★ 5
Great product!
Color: 1set, Size: 24inch, Color: 1set, Size: 24inch
I love this shelf so much I bought it for 2 rooms. Stylish easy to put together and hang on the wall. Shelving is durable metal is strong. Nicely colored wood shelves. Seems to be holding up well in the humidity of the bathroom.
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Reviewed in the United States on April 12, 2026
★★★★★ 5
Great shelf
Color: 1set, Size: 32inch, Color: 1set, Size: 32inch
Looked great in home office. Easy to assemble and not too difficult to install. Hardest part was measuring and getting two shelf sets to align properly on the wall but would have been super easy with just one. Will need a drill for the anchors.
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Reviewed in the United States on May 30, 2026
★★★★★ 5
Quality
Color: 1set, Size: 24inch
Very easy to assemble and mount very stable and good looking 100% recommend
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Reviewed in the United States on May 18, 2026