convertor to flywheel lining up problem

[blackdawg]

i installed the 350 chevy mated to the turbo 400.put the convertor on made sure it did that double bump So it is in.
attached the transmission and installed in the truck.the idea was to install the bolts torque convertor to flywheel when its in.I go underneath the truck and the convertor is snug against the flywheel,I can turn it.Do i need to unbolt the tranny and is the a special way that the convertor and flywheel mate.I was making excellent progress.