7027033 is used ONLY if the car has auto trans and Climatic Combustion Control (CCC) ONLY, which was 2 vacuum doors in the air cleaner to keep inlet air at 100*F.

If the car has this AND A/C, use 7027136. If it has A.I.R and CCC but no A/C, use 7037055. If i... Login to read more.