So I finally tested the local E85 and mixed it with 10% ethanol premium to E50. Need to send Winfield the 2 runs I did in 4th from 2k to redline for tuning but they felt really good. Truck feels like my Dinan tuned BMW 550ix did and that was a smooth rocket. And this is the basic E50 tune from goose tuned. I already know I will love the E50 tune.
Also put new rubber on today - Falken Wildpeak - they feel great. Quiet and much better than my worn KO2s. I feel a mid 4 second 0-60 coming soon!