Ok heres mine. 1967 RS 327 L30/M20 LOS 03D with the valve, 1968 SS/BB NOR 10B with valve, 1968 coupe 327 210hp LOS 03A no valve, 1969 LM1/350 auto LOS 11D with valve. Only one of them is an SS Camaro. Hope this helps. Corrected with build date and plant. Why does the 1967 RS have the valve as it does not fit the 1967 data? Any ideas Kurt?