I want to be sensitive to the gentleman that lost his car to the fire. I have no idea what caused his fire and don't intend this post to reflect on that situation.
Setting aside the obvious; inspect your fuel lines. Replace dry damaged fuel lines. Replace the plastic lines that are in the tunnel as was previously posted.
The most generalized advice I can provide is to know what type of hose and clamps you're using for fuel line applications. All rubber hose is not created equal and the cheap stuff you buy off the spool at your local FLAPS probably is not appropriate for fuel injection and may quickly be degraded by heat and/or ethanol.
Rather than trying to post a dissertation here is a good starting guide.
https://www.hemmings.com/stories/2014/12/05...-should-not-use Not really related to 914's but there are also different hose ratings depending on whether the fuel line is submerged in fuel as it would be in a modern gas tank with the fuel pump submerged.
Do your research, know what type of fuel line you're buying.
With respect to hose clamps - use the proper clamps intended for fuel injection.
I cringe when I see pictures on this site of fuel systems with worm style hose clamps. You may get away with these on low pressure carb systems, but, why chance it.
Be safe out there.