:I would be scared of anything rotating that's exposed (i.e. timing belt) being that close to my fuel lines. Just my $0.02.
Quite safe. The two returns from the high level fuel rail come over the belt cover to the 90 degree side connections on the FPR and the return comes out the bottom and is braced across the front of the bay - it's not going anywhere. Everything is Aeromotive Stainless braided as well - so that helps.