Quick Update, Mike did not have a solution for Iron Rockers and suggested I switch to PRW rollers with his relo kit. Unfortunately, 1.6 PRWs are out of stock for a month or so. I found that if I raised the Iron Cranes .080, the pattern got real narrow and moved to the exhaust side. So raising them .080 and moving shaft centers towards intakes about .080-.100 would be about perfect. Meanwhile I'm done messing with these things and I'm not willing to wait any longer. So.....I'm selling off ALL of my Crane Iron stuff to raise cash for Harland Sharps which is what I should have done in the first place