There was never a plane in the 4th that looks like this. They did not have the checkerboard pattern on the nose and wing tips.
North American
P-51D Mustang
This P-51D-20NA is owned by Roland Fagen of Granite Falls, MN. It was delivered to the USAAF 8th AF on January 05, 1945 and restored in Chino, CA in 1991. Sweet Revenge is painted in the paint scheme of the 334th Fighter Squadron, 4th Fighter Group.