Ventrogluteal if your using the 1.5inch or delt if you want to grab some 1inch darts.
If this is your first time injecting your quads it might be a rough couple of days for you man, even at just 1cc total volume. (at least from past experience)
To answer your question directly, my first time hitting quads it was almost a full week of limping around, and that was a clean shot.