Warmed up block, throttle began surging. Believe TPS is problem child. IAG Stage 2 Short-Block Cobb AccessPort V3 Cobb LF Bypass Valve IAG Complete TGV Housings Process West Verti-Cooler Killer B Oil Pick-Up Killer B Coolant Breather GSC Viton Valve Seals ARP Headstuds GrimmSpeed ECBS GrimmSpeed J-Pipe (Non-Cat) Torque Solutions EGR Delete AEM Intake Perrin 3" Turbo Inlet Perrin Air & Oil Separator Perrin Turbo Sump Restrictor ACT Streetlite Flywheel So-Cal V3 Turbo