340 Harmonic Balancer Recomendation

I've been using this on my 340 from Mancini for years , of course i don't rev the crap out of it 6000- 6500 max no problems seems well made
Pro Race Products Pro Sport Harmonic Balancer
Did your crank pulley line up the first time? Is there a timing mark or did you have to put timing tape on it?