fuel looks like it is dripping down the fire wall. make sure when the lines go through the firewall that there is no brass tubing going near or through fuel lines as it passes through the firewall, vibrations of the engine running can cause the tubing to cut the lines. Also check that the stopper is in tight. details around the firewall are hard to make out since everything is so close. seal fuel compartment and engine compartment with fuel proofing so that if fuel does leak it does no damage. thin epoxy with alcohol and paint it over the interior after removing oil from wood using methods stated previously