Hello all! I had posted a letter a couple months back about this topic, but I wanted to get some new ideas. Here goes. I have a 68 chevelle. I know its not an SS because of V.I.N., lack of plastic inner fender wells, 10 bolt rearend. However, it has full factory guages with a factory tach that redlines at 5000. It also has a factory console with buckets. I have yet to see another chevelle with a factory tach that isnt an SS, let alone with a 5000 redline. If anyone has any information on this option package, please let me know. Also, if there is any information that I didnt give that will help you decipher something, please let me know! Thanks in advance! This is a GREAT site! -----Jerry-----