The engine tags that E.C.S. Automotive Concepts has are top quality. We were especially excited to see the D0OA-9C490-C color code for the vacuum tree. The 299 Boss 302 engine valve cover tag is quite nice as well-note the torn edge. David Walden of E.C.S. offers both the '69 and '70 Boss 302 valve cover tags too. Also available are the service recommendation tags for the '68-'70 Mustangs.