2nd Owner '68 Camaro SS396/4-sp, maybe 375hp
 

Interesting car - sounds like the seller purchased this from the original owner (recently?) and is turning it after doing some basic tuneup work. The engine has an iron intake and I don't see the casting mark indicating square port heads, but it does have the 6k redline tach.

Link to 1968 Camaro SS396 auction

https://i.ebayimg.com/images/g/rzkAA...rM/s-l1600.jpg

https://i.ebayimg.com/images/g/CrEAA...rZ/s-l1600.jpg

https://i.ebayimg.com/images/g/R4EAA...r-/s-l1600.jpg

https://i.ebayimg.com/images/g/r~YAA...ri/s-l1600.jpg

124378N464755

Red over Red L78 would be a neat 68.