A good starting point would be about 35 power 50 impact, rest on skill..just keep adding to skill as you level up
To each his own regarding stats. I personally prefer 28 power and 38-40 impact because after a certain point, higher amounts of skill help add more distance than power. Maybe do the 35/50 until you get to like 92-95 then switch to 28/40, especially if you have top clothing and clubs.
As for impact, higher impact is needed for those that miss 0 on the accuracy bar more often than not, so if you don't miss it much then 40 or even 38 is sufficient. The top clubs are more forgiving generally speaking if you miss 0.
35/50 is certainly the safer option, but soon, you'll realize that high skill is essential to shooting good scores and once you get to the 90s, 28/40 would work better and help you drive much further distances than ever before.
Again though, to each his own.