Sounded like a 3.4 would be safe with the mods on a L36 (unless I get it all set-up and tuned and I don't have any KR and can drop another size). Well, the mods listed is as far as I'm taking the car - whatever that makes for horsepower. lol
Yeah, I'm not too concerned about the fuel consumption, off-school months I don't drive very much so that's not an issue.