This Carbon Steel CEI / BSC tap and die set is the answer to your issues

you need a simple

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BSA or Norton motorcycle

75" exhaust pipes

22mm Petcock Harley-Davidson Style - Chrome - Left Hand Outlet Subcategory_Steel Bungs This Carbon Steel CEI /These chrome petcocks fit any Harley Davidson tanks listed below as well as any aftermarket chopper gas tanks that have a 22mm petcock bung. These are high flow petcocks, with a reserve and mesh fuel filter screen, and have a 90 degree left hand outlet for your fuel line. 45mm outlet for fuel line, is for 5 16" hose. Harley Davidson fitment: FL 1975 1984 FX 1975 1984 FXST 1984 1994 FLST 1986 1994 XL 1975 1995 FXR 1982 1994 FXD 1991 1994