1965 barracuda ,needs 273 commando....
BTW. It could use a rebuild. A bigger cam and the stock Commando compression of 10.1:1 would make it smoke any stock Commando. It should not be hard to find the wrinkle valve covers, air cleaner, and intake.
The Heads have been completely redone ($1100) valves, springs, hardened seats. Less than 300 miles on the heads. I pulled the 273 for my 340 build.
Goodluck and happy hunting for the commando