when bolting a tranny to a motor...

NO!!!!! Do NOT bolt the converter to the flex plate first.Put the converter on the mainshaft-spin it until it drops completly down onto the pump fingers.You can take a straight edge across the transmission housing and see that it has dropped into place-lower than the edge of the housing.Then you can bolt it to the back of the engine,pull the converter up to the flex plate with your hands,turn it until it lines up with the bolt holes,put one bolt in-loose-turn the engine putting one at a time until you have all four in-then tighten them.