A bowl of gasoline with a wick extending up into the manifold will work too.
This works great for the older updraft carbs.

Since we are dealing with a downdraft, a currently unemployed 15-year-old, standing on the running board pouring fuel into the engine from a leaky boot is an option!

Jerry - often there is a 7 word conversation from the corporate bean-counters to the engineers: "that costs too much, make it cheaper!".
Jon.