The 140 speedo is a VERY GOOD sign...as it is a COPO only item. The 427 emblem is the style typically used on 69 Yenko cars...but that's not to say they weren't being used on some of the later completed 68s. Yenko used what they had on hand, and were using both styles of 427 emblems on Chevelles in 69, so it wasn't written in stone as to which cars got what. It's entirely possible the 69 styles were in hand and being used in 68. It's my opinion that the pitted up 427 emblem on the back of that car has been there a LONG time...and it originated from Yenko. Without seeing the car in person it's tough to call it the real deal...but from what I see it definitely warrants a closer look.
