Go 4.10 and don't think twice.
I've got several options for tuning the 93-98.
SCT X4 (96-98), Chip or a complete DIY tuning software package with tuning, burner and chip for all years.
X4 is $399.00 with 10 tunes
Chip, cable and switch is $269.00 with 4 tunes
CalibrVIIItor software is $400.00...