State Board of Administration of Florida, Tallahassee, tomorrow will recommend to trustees of the $725 million Lawton Chiles Endowment Fund, in which the board manages tobacco-litigation proceeds, that they modify the asset allocation, said Tom Herndon, executive director. It will recommend adding new allocations of 12% to international equities, 5% to domestic inflation-indexed bonds and 4% to real estate. Its domestic equities allocation would be reduced to 57% from 60%; fixed income to 21% from 35%; and cash to 1% from 5%. Mr. Herndon said a second tranche of $375 million from the tobacco settlement, to arrive Jan. 1, will be used to rebalance the endowment. Three more tranches are expected over the next several months, which will raise the endowments total assets to $1.9 billion.