I will say, I'm a lot happier with the Z forum's Offtopic stuff. That's some old-school community shit. I sorta wish we had more engagement in our OT threads.
I meant on stock tune. The fuel system will handle E40ish, E50ish in somecases, as long as the cars knows it needs to dump fuel. This is why E40-E50 JB4 cars need meth. JB4 can't add fuel, car will run lean, and kaboomybang.