Police want to find the thief who stole more than $30,000 worth of racing equipment from an Isabella County business. The break-in at Xtreme Race Cars happened some time on Monday. Police say among the items taken were a race engine, carburetors, transmissions, starters, a welder and other parts related to the building of race cars and racing engines. Police are also investigating a similar theft that happened about a month ago within a mile of Xtreme Race Cars. If you have any information on the break-ins, call police.