Could not find the exact model number you listed, but many Peerless valves are similar. Did you look at this installation sheet to see if you could adjust your valve?
http://peerless-faucet.com/products/techdocs.do?product.sku=PTT88760&selected=mi0
http://peerless-faucet.com/products/techdocs.do?product.sku=PTT88760&selected=mi0