What your probably seeing is water vapor, if it was gas it would mean your not fireing on all cylinders.
possibly needs a new carborator
valve seals and or guides bad
check your answer
If it is white smoke, you probably have a bad head gasket or a cracked head.
yes and they look pretty good
That would be the distributor.
raise the bed up it would be easier
That would be a vacuum reservoir.
cost to replace timing gear on 1996 chev s10 4.3
Yes, there is no reason you should not be able to change the oil by yourself in a 1996 Chevrolet S10.