If he's saying that those are the numbers for a VIN then be careful about this one. That almost sounds like a state assigned number given to a car that was stolen and recovered. Look at the title very carefully. If G9372 is listed as the car's VIN, walk away from this one.
gotta admit - you had my heart racing there for a second as the "G" is the engine code for the Boss 302, but I agree with everyone else - the VIN should be an 11 element code, for example, the VIN on my Boss 302 is 0F02G122540......
And beware, some VINs were slightly illegible so they get entered into the DMV's computer wrong. I had a '65 V8 coupe with the VIN 5F07G1somethingsomethingsomethingsomethingifergit. I think the confusion arouse due to a nick over the C.
Again, beware. Check the door tag against the VIN stamped on the inner fender on the driver's side of the engine compartment, plus against the title to ensure they match. The door could have been replaced at some time and the warranty plate not changed. The VIN you have decodes as:
T=Built at Metuchen NJ plant
09=2 door fastback
K=289 4V Hi-po engine
40422= consecutive unit number
If is a true K-code and has the original engine you have a true find if at a decent price for condition. It's worth looking at. Good luck.