@Hamid bhai, thanks yup its was my friend's Lumina with NOS actually both cars were with NOS
@Mirza bhai, Thanks,, yes you can have idea that its not stock car because the car which i was driving (Camer car) Caprice SS with same 5.7l engine i also pressed the throtle but after 5 or 6 seconds i couldnt even see the rear lights of that car