Earl's 90 Degree Adapter Fitting -1/2 in NPT Male to 5/8 in Hose Barb - Blue GBDXS3 you should avoid wrapping any

you should avoid wrapping any flex-pipes or flex-joints

They increase the manifold plenum area and provide the maximum thermo barrier between the manifold and carburetor

1 in x 14 Spline

Vacuum / Mechanical Advance

Earl's 90 Degree Adapter Fitting -1/2 in NPT Male to 5/8 in Hose Barb - Blue GBDXS3 you should avoid wrapping anyEarl's offers the most complete line of adapter fittings in the industry. In addition to the standard range of AN adapters in both aluminum and steel, over the past 30 years Earl's has designed and manufactured a wide selection of special adapter fittings to meet the needs of the racing industry. These specials include metric to AN, inverted flare to AN and power steering fittings. Special Adapter Fittings To Meet Racing Industry Needs Made In USA