At first I was fooled by this one, as I initially thought this was David Norland's N5466V (44-74230), as the paint scheme is very similar. A little more research, however, proves that this is in fact N51GP, belonging to George Perez, of Glen Ellen, California. The serial number for this aircraft is 44-74483, and the c/n is 122-41023. Perez has owned it since 1966, and before this it had gone through seven different civilian owners since being surplused by the R.C.A.F. (where it had served as 9228) in November of 1959.
That is George Perez's P-51 in the north bay.