my stock 5.7 ate an 03 5.3 and an 04 4.8 off the line and through bout 75 after that 5.3 pulled up bout 1/2 a car then he hit rev limiter and i pushed in cruise control and bypassed my governor bye bye 5.3 and the 4.8 just saw my bumper the whole time...never raced a newer 5.3 like your so i can't comment