^^ Too tall of a discussion for me bro. That's above my paygrade. LOL. I've heard of F20s breaking shit loose at 9k, and then there are some that are golden over 10.5k. I think they would be the most finicky motor in the Honda lineup (possibly) when modded?? Maybe?? I'd give Inline a call. Check out their site too. Then let Mike and the crew bring one of their spec sheets to life for a lil "hometown finesse".