Oklahoma Police Pension & Retirement System, Oklahoma City, is searching for an active domestic core equity fund-of-funds manager to run between $50 million and $90 million in a long-short strategy, said Robert J. Wallace, executive director. Funding will come from rebalancing, he said. A selection is expected by July or August, he said. The $1.1 billion plans asset allocation is 75% equity and 25% fixed income. Asset Consulting Group is advising.