LS1 - TR224 Cam, TSP 5.3L Stage 2.5 Heads

First run after heads/cam swap.. This combo wound up putting down 421rwhp and 409ftlbs torque.. Running with open headers.. Mods: Fast Toys Ram Air LS1 Motorsports Lid Ported TB LS6 Intake PowerBond UD Pulley TR224 112LSA Cam Texas Speed Stage 2.5 5.3L heads XS Stainless Long Tubes.. Off Road Y GMMG Exhaust Vigilante 3200 stall Stock GM 3.42 rear end (upgraded from 2.73's..)

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