7k rpm tach???

[66Sprint6]

Im lookin at getting a new 7000 rpm tach. Is this good enough or do I need to get one that revs higher? I dont kow that Ill EVER rev my six near that high, but you guys wouldknow better about this than me.
Matt

 

[Asa]

from all i've read, you won't need that much
maybe a 6K