[Steve Shauger]

<div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: JoeC</div><div class="ubbcode-body"><div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: Charley Lillard</div><div class="ubbcode-body">I think Posi was optional. </div></div>

Positraction was required for 3:73 and higher on the 1969 Camaro Power Team Chart </div></div>

I've seen a few 3:55 non-posi Z 28s, but never 3:73 and higher.