COAST SAVINGS <CSA> IN TALKS ON BUYING BANK Coast Savings and Loan Association said it is in talks with the Federal Savings and Loan Insurance Corp on the acquisition of Central Savings and Loan Association of San Diego. Central, which operates 46 branches, has been under management guidance of the FSLIC since May 1985. Coast said the acquisition would give it an entry into the San Joaquin Valley market besides strengthening its presence in the San Diego, Los Angeles and Orange Counties areas.