hook up a timing lite to #1 plug, aim it at timing mark on front pully, wind engine up and see how much the timing advances, should get full advance at 2000rpm or so
Remove the line from the back of the carb and you caninsert a unbent paper clip through the hole and it will come out in the lft side venturie. You should be able to see it sticking into the venturie,to make sure the hole is not blocked. ken ct. Use as fat a clip that will fit through the hole no bigger.