Need some help with drag tuning

so im new to the whole tuning thing, but im starting to figure some things out. however im lost when it comes to suspension/damping/rebound/bump/and of course gear ratios, please someone help!!! also NOTE this is for DRAG

There are several threads and posts that you can search for in the FM5 Tuning Lounge which you can certainly leverage.

http://forums.forza.net/turn10_topics9_Tuner-s-Lounge.aspx