There is a lot more to the subject than is being discussed. The first answer is correct, BUT as mentioned there may be a loss of gas mileage and low end throttle response.
You didn't mention the car, combination or how you "DRIVE" it on good weather days.
Getting the optimum performance requires a combination of initial timing, mechanical advance (how much, where it comes it and how fast), vacuum advance and jetting. The first three variables can have a substantial impact on performance and MPG. I have seen many cars with TOO MUCH vacuum advance which can lead to misfiring and a loss of MPG.
You could try bumping the initial a couple of degrees to give you a higher total as long as you're not introducing detonation or hard starting when hot.
now you have way more information than you asked for