@mbabiash
Thanks, I will try a few different settings and report back! Spoke to @Martin today and he gave me 3 different settings to try as well...He said these should all work on 68 and others.
1) 6.865, 2.475, .71 to .74 - Stock/Greg
2) 6.840, 2.485, .72 to .74 - @Martin
3) 6.765, 2.495, .735 - other to try