1972 corvette barnfind numbers matching

Make: Chevrolet
Model: Corvette
Year: 1972
Mileage: 68000
VIN: 1z37k2s521706
Color: Red
Engine: 350
Cylinders: 8
Fuel: Gasoline
Transmission: 4 speed
Interior color: Black
Vehicle Title: Clear
Item location: Mount Pleasant, Pennsylvania, United States
Extras

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Private seller
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Description of 1972 Chevrolet Corvette

Barn find been sitting for 30 years2 owner68k miles4 speedNumbers matching blockExhaust was updated at some point we believe in 2002 however was never drivenRepainted in the 80'sIt did run and drive when parked

This car has not been started in at least 17 years and we are selling as is.We know it will need brakes and a fuel tank at least however can not provide any other details beyond that.
These are getting harder to find and values rising daily. This is a CMK block matching 72 Corvette

On Apr-27-19 at 11:04:56 PDT, seller added the following information:

Actual mileage 70216Car will be sold if close to reserve price.Pickup/shipping needs arranged by buyer.

On Apr-28-19 at 11:10:38 PDT, seller added the following information:

Block number pic added. Message me if unable to see or need others.