1994-1997 LT1 Camaro / Firebird Our billet throttle valve will provide significant increase in air flow. We start with a solid block of billet aluminum and CNC machine it to precise tolerances. The shaft rides on oilite bronze bushings for smooth operation. The Monoblade has a stainless steel blade for maximum strength and reduce flex under boost conditions. Your stock IAC and TPS is installed on the new throttle valve, hardware and larger gasket is included.