Holley's NEW LS Throttle Bodies are unquestionably the BIGGEST BORE ???? MOST FEATURE LOADED available. Holley went back to the drawing board and built the ultimate air valve for your LS engine. Huge 105 and 95 millimeter bores with low RPM drive friendly tapers and a 105 that is all bore for when WOT is all that matters. Features like Idle Bleed Adjustment, TPS CLOCKER, and PCV passage defeat valve, make these the ultimate throttle bodies for ease of installation and tuning. Regardless of whether you have a turbo, supercharger, or a big cam engine sucking gulps of air, Holley's throttle bodies are maximized for your application. And, we even made them BLACK ANODIZED to give them a modern tech look.