I have a 2.8 KB LC going on my car and I think it might be running on borrowed time. The car is currently tuned on 93 but I will be going to E85 with more boost eventually. I want the 298ci Livernois motor would E85 be enough to get the 9.7:1 comp shortblock? Also do I need to change the jet ratio for E85/spray or is it the same as 93?