3. The hose fittings are equally important, and we’re using Earl’s military-spec Ano-Tuff pieces. Besides satin-black good looks, Ano-Tuff fittings have a hard-coat anodizing that actually penetrates the aluminum for corrosion resistance inside and out. The threads are also treated for protection against galling. According to Earl’s, Top Funny Car teams report that Ano-Tuff–coated fittings last twice as long as traditional red/blue fittings.