My guess is... Yak-11 with F-86 wings and tail. But, the image is a (pretty good in my opinion) photoshop job.
For the rest of the story...
The air racer Czech Mate is a Yak-11 that has been heavily modified with a R-2800 engine, cut-down Skyraider prop, and a taller tail that resembles a P-51's. But, Czech Mate has its original Clark-Y airfoil wing and short landing gear that are not the best for air racing. In 2009, Bucky Dawson got a good shot of the aircraft under G, and the wings exhibited some unsettling wrinkles. As a result, the Czech Mate team decided to rebuild the wings.
Big dreamers like me hoped that the wing rebuild would incorporate a better airfoil, longer gear (for a longer prop), and gear doors that actually close (ongoing joke). While the wing work was being done, incredible aviation photographer and all-around nice guy Victor Archer would visit the shop on occasion and tease the rest of us as to its progress. As the ultimate tease, Victor used his mad photoshop skills to graft F-86 wings on Czech Mate's fuselage and said that it had flown with its "new" wing.
And that is our current image: Czech Mate (Yak-11) with F-86 wings and tail.
Back in reality, the wings were rebuilt to stock configuration (although strengthened internally), and the aircraft made its triumphant return to the Reno Air Races in 2013. Czech Mate has always been one of my favorites.