Fuel pressure regulator where to mount

8.5 is really pushing it. You may have flooding problems if you don't use a regulator. You'll be fine runing the line through there as long as it don't come in contact with anything. I see alot of guys running their regulator on the fenders and I don't really know if it affects things like Don says but he is a professional racer so I figure he knows more than me and that's why I go by his saying to run them close to the carb.