1986 GMC C1500 "new egr valve incomplete" Questions

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...EGR O2 (oxygen) leak in the exhaust Oh yea evap emissions where the fuel vapors escape into the atmosphere through a .020" hole in the fuel vapor recovery system somwhere between the fuel ank and the ...

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...new cylinder head fitted but continuous smoking what could be the problem ? black smoke --over fuelling, incomplete combustion white smoke --too lean , water getting into the combustion chamber ( ...

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...new; Carb body interior is clean; all vacuum lines to carb are soft / plyable and attached correctly. Vacuum to distributor functions correctly, but did notice some slight rust build up inside ...

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