What distributor do you run?

I like running the MSD because it gives you all the different Springs and graphs right on the box to set your curve and it also gives you Hi-Lo limiters...
It comes with about 14 degrees of advance with how its setup out of the box. Which has work for me so far. I also put the very lightest and the next step spring I forget the colors but they are color coded. And it gives the second most fastest advance on their chart. this way you can kind of follow their charge and get a good rule of thumb.
25 initial advance isn't extremely crazy with what kind of setup you have. Saying you have a cam in it is extremely vague. But I'm assuming it's got a hydration. Most performance cams like at least 19 to 20 degrees of advance at idle and most all Mopar small blocks with some exceptions are going to be somewhere in the 34 to 36 degrees All In...
Me personally I'm at 21 and 35 runs perfect starts perfect...