I raced my savage some and have done extensive research on how to make a savage into a racer.
1st: 40 series bowties or mashers, whatever suits ur track
2nd: good motor, i have been running the xtm 247 pro, and this is an awsome engine, i dont think i even ever want to test out a different motor for the track.
3rd: Better steering servo: Try to get a 945 mg hitec servo, with a reciever battery pack
4th: Suspension: Whatever suits ur track, i have heard that 20 wt-30 wt, all 8 shocks, no limiters and maybe blue or green springs. Since u live in Winsconsin, i am takin a guess ur tracks are a little bumpy, so i would say 20 wt with green springs.
5th: Cam type servo saver: i have never had one and never needed one, but this will help out in the steering department along with the upgraded steering bearings.
6th:LCG TVPS: i have never tried a savage with these so i do not know, but suppose to be awsome, but will most likely put ur truck in the unlimited or outlaw class at the bigger races, u may be able to get away with it at ur local track.
Good Luck!!!