Steering wander: check the tie rod ends, and the control arms bushings make sure your tires are fairly new (cannot see lincoln's head [3/32"} with a penny as measurement) go and get an alignment. Ventillation: unique because of the air-cooled motor, not sure if this one has air-conditioning or not, but perhaps it is engaged and not-functioning....flaps are vacuum operated servos, you may want to check their operation with a sucker tool-
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