Stop acting like your driving some future machine. Its a standard, RWD, Small Block Chevy powered coupe, they have been making those for a long time. A clutch hasn't changed much in 50 years. Its got 362 miles on it. If your as knowledgable as you claim then you know it needs more miles on it to feel what its going to feel like for the next 40K.
Also if you don't trust the dealer, then try bleeding your slave cylinder and see if that helps the pedal.