I need a pizza tip here... I always seem to have the bottom getting too browned before the top has a chance to finish far enough. What can I do to prevent this? I have a narrow oven... would that make some sort of difference?
I assume you're using a stone? If so, move the stone higher in the oven; the stone will be further from the heat source (get less hot) and the top will be closer to the hotter air, so the top will cook faster as well.