Earls Auto-Flex Hose - Size 4 - 6 Ft. Length - 306004ERL flowtech-exhaust-and-headers while the built-in Helmholtz chamber

while the built-in Helmholtz chamber helps control the interior resonance

5 V8 1974 Chevrolet K10 Pickup 454/7

6 V8 1977 Oldsmobile Cutlass Supreme 403/6

Plug and play compatible with more Holley EFI accessories such as

Earls Auto-Flex Hose - Size 4 - 6 Ft. Length - 306004ERL flowtech-exhaust-and-headers while the built-in Helmholtz chamberOverview: A high quality stainless steel braided hose at a price competitive with the imports. Earl's AUTO FLEX stainless steel braid protected synthetic rubber hose is manufactured to our specifications in the U. S. A. Earl's AUTO FLEX hose features a recommended temperature range and maximum operating pressure equal to our racing premium quality Perform O Flex hose at a much better price. A partial coverage textile inner braid is imbedded in the