Here is something interesting.. See if you can tell what was changed on this car besides the lettering.
One thing that changed was the rear emblem... Chevy bowtie in one.. Z28 in the other... 
Bingo. Next question is why.?. was it to hide that it was a Z or something else??? Engine swap to a 427 or
. More pics coming later on.
Also note this X77 car with the side louvers. I dont know anyone that would add the louvers and not the rest of the trim..
