Sorry man spinning the converter is only to ensure that it is not in a bind, it should spin either direction, but its not gonna help your problem, do you have to move the trans mounts on this swap? What i would do is pull the motor and trans out, bolt them together, install the motor and trans together then make your mounts for the trans fit, possibly need your driveshaft lengthened afterwards, sorry im not much help dont know much about this year body style swap.