If you smell fuel I would think the enrichment solenoid could be leaking by or your some of your bleed valves are bad. Not sure your motor has the bleed valves. They are supposed to prevent puddling of fuel in the intake. You can disconnect one of the small lines out of the enrichment solenoid and turn electric pump on to find out. What sparkplugs are you running?
“The world will not be destroyed by those who do evil, but by those who watch them without doing anything” GOD IS GOOD