Just tried Autocross, 1st time! Couple of ???'s

[LOCASH]

First let me tell you that I have never had so much fun with my car! It was so much fun. One of the guys on the base races Porsche's in the states with a team. It was great! I ran about 8 laps total. Lost the course the first 2 ( cones are only on the turns), but once I found it I did OK. I went from 2.20 to 2.09. The fastest car was a 1.49. It was the Porsche guy driving his modified BMW M3 with Autocross tires and all kinds of other things I can't afford. Anyway, I have some ???'s When I go around the turns my front end "plows." I noticed wear as far as the shoulder of the tire. Would a Panhard bar be a good idea or should I spend the $$ elsewhere? Here is what I have-
H rated 225's front 245's rear
BBK lowering 1.5
KYB gas adjust
MM strut bar
Steeda subframes
16" wheels
91 front brakes and spindles
rear disc
3.73's
Ratchet shifter
B&N shift kit.
Everything else is 135k stock suspension. I also didn't check the front tire air pressure but they looked ok. What should I do next? What should I be concentrating on? I know this is alot but any and all help will be greatly appreciated.