At part throttle I think it's impossible to make that combo detonate.
I ran a very similar combo at 11/1 Scr at 930ft, on 87E10. Cruise timing sometimes was over 60 degrees. Sometimes I would forget to dial it back when I got into town. So she mightabin running an extra 10 to 15* at part to moderate throttle. That combo was a manual trans so it only took a short time to feel my mistake. Thing is it never made a peep under the hood. At 930 ft.
yeah get them 3.55s in there,pronto, then snug up your seatbelt.
