First let me say welcome to the site..
If this is happening when the engine is cold, I would be careful stomping on it anyways, thats a good way to wear out your rings. When the engine is cold, the oil has circulated enough yet. However, it is odd to have a delay in power like that anyways, I would check transmission fluid, and the condition of your air filter. If the tranny is dragging or there is not enough air flow, the engine will bog a bit. Also, that is about the recommended mileage for a tune up, when did you give it one last? Anyways, I would let the bad boy warm up a bit before you romp on it too much.