can anyone help

[bnmusher]

i've got a 172 cup the problem im having is that the car loses power when drivin along don't matter how fast your going could be doing 20mph or 70mph you can pump the pedle and nothing happens then all of sudden it kicks back in and it fine. its very ramdon it'll do it for a few days then it'll be fine for a week. i've already had a new coil pack,leads and plugs.

 

[JackJack]

Any lights on the dash when it does this?

 

[bnmusher]

i dont think so, i'll check next time.