If you are asking about required safety items, you'd have to contact the track you plan on running at and their sanctioning body. IHRA and NHRA do have a few different rules, as will non sanctioned tracks.
If you want "What would you use?" answers.
Fuel pressure safety switch
RPM window switch
WOT activation switch
Bottle warmer for safe temps (cold bottle = bad shot)
Blow down tube if required by track I frequent.