A tune won't move the car any "higher". Tunes are SP legal.
Slightly off topic...
Where are you racing?
Furthermore, I am a proponent of seeking out experienced people to help me learn things I am new to...Chicago Region Learning Curve
Tri-State Sports Car Council/Chicago Region SCCA/Milwaukee Region SCCA
Do better every run.
2002 ZX3 (daily)
1990 CRX Si STS (autox)