Earl's LS Steam Vent Adapters - LS9805ERL holleyefi 7L V8 1975 - 1978

7L V8 1975 - 1978 GMC G25   400/6

8L V8 1981 - 1987 Ford Bronco 351/5

7L V8 1975 - 1976 Ford Elite 351/5

or for those who already have significant performance upgrades and want to safely monitor their vehicle's performance

Part Number: 817473

Earl's LS Steam Vent Adapters - LS9805ERL holleyefi 7L V8 1975 - 1978Overview: Another first from Earls are the adjustable LS steam tube adapters. The original GM brazed vent tube manifold does not take into consideration the aftermarket intakes and accessories we put on our performance vehicles. Replace the rigid hard lines with these adjustable outlet, O ring seal adapters that converts to 3 or 4 AN plumbing. Earl's Steam tube adapters are the most adjustable and lowest profile available. These adapters LOOK as nice