friends my car completed 1000 kms today and i am noticing when i floor it from zero a click sound from the engine like the valves clicking sound u know that sound u used to hear in old cars when they do that sound the car smokes from the exhaust... i dunno if anybody knows which sound im talking about... it is valve clicking

the same sound i can hear when idle and i press suddenly the gas pedal or i rev it.

is this normal?