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Ships within 48 hours · Estimated delivery Jul 31 - Aug 5
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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
4.4 ★★★★★
Based on 9 reviews
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Product Reviews
★★★★★ 3
Worth the money
Size: Queen (U.S. Standard), Number of Items: 2
So these pillows are for sure hotel pillows, great filling quality, support(not so much), no odor, they are worth the money, soft but just not the support I was looking for.
Nice fluffy, hotel pillows
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Reviewed in the United States on April 24, 2026
★★★★★ 5
5
Size: King (U.S. Standard), Number of Items: 2
All night sleeping
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Reviewed in the United States on May 29, 2026
★★★★★ 5
The best!!!!! Don’t let the price fool you.
Size: King (U.S. Standard), Number of Items: 2
I don’t know how much money I’ve spent over the years trying to find the perfect pillow. I ordered these to use only as decor on my bed with some fancy pillow shams I had ordered and guess what- they’re my very favorite pillows I’ve ever gotten for sleeping. How in the world is that possible? So I switched my expensive pillow to my fancy sham and sleep on this every night. Buy it right now!
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Reviewed in the United States on April 4, 2026
★★★★★ 5
Impressive Set of 4 King Pillows – Comfort Meets Quality
Color: Black, Size: King (Pack of 4), Color: Black, Size: King (Pack of 4)
Impressive Set of 4 King Pillows – Comfort Meets Quality
I recently upgraded to this 4-pack of king-size pillows (20 x 36 inches), and they’ve been a fantastic addition to the bedroom. Certified by Oeko-Tex, they’re suitable for all sleep positions—whether you’re a side sleeper like me or prefer your back or stomach.
The feel strikes a perfect balance between soft and supportive. The microfiber filling cushions your head and neck without going flat, so I wake up without the usual stiffness. They bounce back quickly after use and keep their shape well—just give them a quick fluff when needed, and they’re good to go. They do need about a day to fully expand once unboxed, but that’s expected.
The design also deserves a mention. The subtle stripe pattern gives the pillows a clean, upscale look—definitely not your average basic pillow. They’d make a solid gift, too.
Cleaning is easy: toss them in the washer on a gentle cycle with cold water, then either air dry or tumble on low. No hassle.
If you’re looking for a dependable set of king-size pillows that feel great and look sharp, these are worth it.
I also took a picture of it next to a standard pillow so that you could see the difference in the size from King to standard. Hope that helps, overall definitely buy these pillows if you are hesitant there is no need to be, these pillows are perfect in my opinion
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Reviewed in the United States on August 2, 2025
★★★★★ 5
High End feel.
Color: White, Size: Queen (Pack of 4)
I bought this because I needed to replace old pillows. After using it for a few day I liked that they stayed fluffy and cool all night. My guests loved them too! The quality feels high end. I would recommend it for anyone that likes high end feel without the the high end price.
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Reviewed in the United States on May 21, 2026