Engine hesitation if i push hard the gas

1992 4.0 xj40 .
Idle good hot and cold , no problems while driving, even in kickdown.

But when i am in park or neutral if i give a strong push to the gas pedal from idle for a moment (1 second) the engine hesitates like too much fuel arrives at the cylinders , if i push the gas gently no problem at all. I am wondering if i have to check spark plugs, injectors ot other stuff.