T J Johansen
I believe this is 44-74425 N11T, which is currently based in Holland as PH-PSI.
This look's like john Herlihy's Mustang which was based at Half Moon Bay, CA during the 1970's
John Herlihy had two Mustangs at Half Moon Bay in the middle 1970s, "This Is It!" in WWII colors of blue forward cowling and yellow rudder and a second Mustang that looked a lot like this one. Overall silver with a P-51H propeller.