Mechanic Job in Milwaukee, Wisconsin

Has been sitting for last year but would be started and warmed up every few days and drove around a bit periodically. Put stable in the gas tank, went through a tank of gas doing this over the last year. Recently drove to station and filled up gas tank. Restarted car a few times over the next week. All of a sudden car cranks but won't start. Fuel problem of some kind? Clogged fuel filter maybe? Really sweet Screaming Yellow 03 Focus SVT with Euro Package. 139k. Don't want to sell but may have to.