bolide tuning issues

ive been trying to get a decent track/ hard street car and im kinda failing? it seems i found a config that will hold 600 hp through some turns on utah and is pretty quick but it still slides the back end out under hard force. if i switch the tires or wheels to like lets say a 19x11 so a 295/35/19 its like drving on ice and will slide out the back under 0 throttle which might be my fault but its not gripping when i swap tires which im assuming is a tuning issue since i can drive a 1300 hp barstow about as hard behind it and only go 5 mph slower through the turn (65 vs 70 on the sharp utah corner bridge)
if someone wants to try and get it better go right ahead but i will warn you it can be a bit snappy (like my irl fiero that has a little too much flex in the subframe)
ill upload the file in a minute
edit:https://drive.google.com/file/d/1ClrL33gavVurJvfdf52tY2aLeHlbcDCt/view?usp=sharing
couldnt upload the pc file directly