I just rebuilt the engine in my 1986 mustang.....i am still on speed density and all stock....in fact the only thing not stock now is my oil pump...(ford racing hi flow)...i replaced my TPS and my oxygen sensors......when i dumped the codes i get 14....18.....42....92 any help finding why i am running so rich would be nice....oh btw i also replaced all under-hood vac lines