QA1 High Travel Coil-Over Spring - 2-1/2" I.D. x 12" Tall - 110 lb. D.S.S. Racing The SUPPLY mode is indispensable

The SUPPLY mode is indispensable when changing the battery as you avoid losing complicated program settings

Pro Street/bracket

Fits in stock HEI distributorsCARB EO # D-40-43

Every Landrum Coil spring comes with a dyno sheet

QA1 High Travel Coil-Over Spring - 2-1/2" I.D. x 12" Tall - 110 lb. D.S.S. Racing The SUPPLY mode is indispensablePowder Coated, Chrome Appearing Silicon Manganese SteelAll QA1 springs are manufactured using the highest quality chrome silicone. This material offers high strength, consistency and longer life. Cold Wound Heat Treated Shot PeenedAll QA1 springs go through intensive manufacturing processes to ensure consistency, accuracy and durability. Squared EndsAll QA1 springs are ground at both ends to ensure straight, consistent and accurate operation.