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Adjustable Vacuum Advance for GM HEI Distributors - 31035

Adjustable Vacuum Advance for GM HEI Distributors - 31035

SKU: 31035
Regular price $35.70 USD
Regular price Sale price $35.70 USD
Sale Sold out

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

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/
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Policies and FAQs

Return Policy

We offer 30 days return of 100% purchase price for defective items. Return shipping and handling charges are the customers responsibility unless it is our mistake. (If shipping was included it will be deducted from the return)  If the part is wrong or defective please advise us if you would like an exchange, replacement or refund. We suggest our buyers keep tracking number delivery confirmation, and pack item securely to protect the return. If the part is lost we are unable to offer a refund. The part(s) must be returned in its original condition. Returns over 30 days may be accepted at a discounted price & offered store credit. Our return address is 774 Broad St Wadsworth, Oh 44281.

FAQs

This is the line that runs from the front of the vehicle to the rear. On most vehicles it connects to a junction then you will have rear axle lines. On a few cars the intermediate lines will connect to the rear wheels. It is recommended to change the axle lines if you are replacing the intermediate lines.

Our kits include all of the solid metal lines for that section of the vehicle.

We are happy to help! Please help us to help you by going to our return form and filling out the form as best as you can in order to request a return.

  • Modern Day stands by our parts and is happy to accept returns within 30 days of purchase. Parts must be in new condition.
  • If a part arrives damaged, or is defective, Please report it to us immediately. So we can handle it for your promptly.

Yes but you will need to order in advance. All of our items are not stocked at our location. So please place your order online and we will notify you when it is ready for pick up.

Unfortunately we cannot offer single lines outside of kits

Yes, all are covered by the manufacturer's standard warranty. Most warranties cover the cost of parts. Any installation or other fees are non-refundable.

Online we accept PayPal and all major Credit Cards. If your are picking an item up we gladly accept cash.

We can only ship to your confirmed address in PayPal or your billing address if you pay with a credit card.

Orders typically Arrive within 3 to 10 days depending if it is a stocked item or something we have manufactured at time of sale.

Yes please send us a message through our custom orders page.

Yes, but items sent out of the continental U.S. may incur additional charges based on their destination

The left and right sides on a vehicle are determined as though you were sitting in the driver's seat. The left is the driver's side, and the right is the passenger's side.

Check it again tomorrow. It takes up to 1 day for the carrier to give status and a delivery date. UPS and FedEx provide delivery dates, USPS usually does not but they take no longer than 5 business days.

Yes! Thank you for your military service!

Still have a question or concern?  Please contact use our contact us form!

Yes! Thank you for your military service!