[Dead Parrot]

Q-Jets have a known problem. The casting plugs under the jets will leak. Enough to cause the gas to leak out while parked overnight. Most rebuild kits include a rubber pad that doesn't work very long. Common fix uses some variation of epoxy to seal the plugs. But most epoxies fail under constant exposure to gas. Another place they sometimes leak is the plug on the front of the carb by the filter housing. Even more difficult to seal as it is under pressure.

What ratio are the differentials? If you have an ' fuel economy' set, towing a heavy load like a skid steer + trailer will be slow. There is no magic tune that will change that.

Compression #'s being close to each other is good.

There should be 2 holes on the accel pump lever. If push rod on the outer one, try moving to the inner one. Should shoot a bit more gas when you mash the pedal.