BILLET 105mm LS Throttle Body w/straight boreBILLET 105mm LS Throttle Body w straight bore LS 105mm TB w cable drive and taper Overview Holley's BILLET LS Throttle Bodies are the BIGGEST BORE MOST FEATURE LOADED available. Holley went back to the drawing board and built the ultimate air valve for your LS engine! This all new design boasts a huge 105 millimeter bore for when WOT is all that matters. Innovative features like Idle Bleed Adjustment, TPS CLOCKER, and closable PCV Passage Valve, make