Firebob, I would also think if they are claiming it is numbers matching it would also match all of the paperwork. The gauge set does not look like an original i beleive it is an aftermarket unit And as you say what else could have been changed
86 Pontiac 2+2 69 Firebird Coupe(Under Construction) 69 Firebird 4 speed Vert Driveable but Under Construction 64 1/2 Mustang (Under Construction) 86 Z28 Convertible Weekend driver