Andy
Good choice in 2wd and 4wd - that is what I normally run.
It is difficult to give a set up to anyone without knowing and experiencing a track.
May I suggest trying the various on your normal track and finding what suits you.
Remember the timing clock never lies.
Although i have to upload more and will be doing so very soon.
Have a look at my personal website for some set ups.
Let us know how you get on
www.tonyevdoka.com