Deffinetly putting the wide band at the top of the list. I'm sure it's not ideal right now... assuming I'm running a little rich, based on what I've been told by a couple others on here with the same set up. The worst I could do is foul some plugs or dirty up my cat. Plugs are Safari NGK spec'd, rather than stock, also run premium fuel per instruction. As far as timing I don't see a big issue. "Scary" Get's me a little scared!