QA1 High Travel Coil-Over Spring - 2.500" ID - 14.000" Length - 95 lb/in Spring Rate - Black Powder Coat 1950793 This dual-plane high rise manifold

This dual-plane high rise manifold has excellent high rpm power while retaining throttle response

one toggle switch

Nylon Outer Shell

1961-1966 Checker Marathon

QA1 High Travel Coil-Over Spring - 2.500" ID - 14.000" Length - 95 lb/in Spring Rate - Black Powder Coat 1950793 This dual-plane high rise manifoldQA1 offers an assortment of high travel springs with a black powder coated finish. Made in the USA, these 2" I. D. high travel springs are manufactured from specially designed high tensile, chrome silicon alloy spring wire, which allows them to have fewer coils and a smaller wire diameter. As a result, these springs are lighter and have increased travel due to the larger distance between the coils. These lighter springs reduce unsprung weight and