IMO:
-Run a quality synthetic oil and tighten up those oil changes (during track session)
-Especially for texas heat, grab yourself an oil cooler
-The stock PP suspension is quite decent. If you are going to stay on a stock sized wheel (with 200TW's), I would simply add camber bolts (
https://www.ft86speedfactory.com/whi...E#.Xbl6V1VKhpg) and max them out. Otherwise, you will be dealing with horrendous understeer all day.
-Get mad seat time (not sure how new you are), but definitely stick around this level until you are at or beating local Spec Miata times. That is a great benchmark that basically anyone can use at any track.
Brakes:
As far as brakes go, I'm still messing around with running either square or staggered pads. I've heard both things and I'm currently on staggered GLOC R12's but will try square here soon. I think GLOC and PFC make some of the best track pads out there. PFC's are quite expensive but really are absolutely top notch (as long as you swap track/dd pads). Recommend R12 Front/R10 rear or R12 square otherwise.