Here is a list of instances when there was a gap of at least 30 in head-to-head Tests between two FIRST innings declarations. The sides without declarations are listed first. The Tests listed are exclusive (last and the next match in which the listed sides declared their first innings closed). There may or may not have been second innings declarations during the listed sequences.
98 Eng v WI from 619-6d Nottingham 1957 to 566-9d Birmingham 2004
54 Eng v Aus from 351-7d Lords 1968 to 482-9d Manchester 1985
54 WI v Aus from 468-8d Port-of-Spain 1983-84 to 449-9d Bridgetown 2011-12
36* Pak v WI from 406-8d Karachi 1974 to current
35 NZ v Ind from 462-9d Calcutta 1964-65 to 630-6d Mohali 2003-04
32 Ind v Eng from 457-7d Madras 1963-6 to 481-4d Madras 1981-82
31 Aus v Ind from 387-8d Bombay 1959-60 to 574-4d Madras 1986-87