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or for those who already have significant performance upgrades and want to safely monitor their vehicle's performance
7L V8 1958 - 1967 Chevrolet Biscayne 283/4
4L V8 1987 - 1989 GMC R3500 454/7
ABS Type: Rear Wheel ABS / RWABS / 2WABS (Brake Code BGJ)
7L V8 1975 - 1976 Ford Elite 351/5
Earl's LS Steam Vent Adapters - LS9805ERL holleyefi or for those who alreadyOverview: 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
