In this paper we propose a novel technique for tuning and enhancing performances of current conveyor based active circuits. The basic idea consists of judiciously adding controlled sources in the signal flow graph representing the active circuits. The potentiality of the proposed technique is showcased with five different examples (namely, enhancing performances of parallel and serial 'simplified circuits, enhancing performances of an fourth order ladder filter, tuning performances of an active second order filter, and tuning inductance value of active inductors), and its viability is supported with Spice simulation results.