Starts then dies and leaks gas

Get yourself a trickle charger and hook it up while the car or truck sits for periods of time. I have one for my cuda, motorcycle, and lawn mower. One trickle charger that is... I just route it between vehicles. I got tired of replacing batteries.

I would recommend sure enough to rebuild the carb.... it sounds like it needs it. Compressed air, rebuild kit, gallon of the dip type carb cleaner with the basket and that's just about it.