Around this time of year you guys will most likely start to smell fuel in the mornings or whenever you start your car the first time when the car is cold on a cold day. This is cause the fuel lines are contracting and loosening up from the hard lines on the motor. Here is a link that goes over this in better detail but just wanted to give you guys a heads up because I don't wanna hear about someones J30 catching on fire because of a fuel leak. I usually see it each year about a 300zx on the 3zc forums.

Visit and read this:
http://s95014253.onlinehome.us/63104/155876.html

Very good point bud.
I tightened up the clamps and replaced all the easy to get to lines.

First year I had the J it drove me NUTS smelling all that fuel till warmed up.
Finally popped the hood open on a cold Saturday and freaked on how much fuel was leaking from the lines in front of the Throttle cable cover.

yah ive changed my lines but one of them was loose on the fuel pressure regulator so had to replace it. i know its a big issue and have seen threads and photos of 300zx catching on fire because of it.