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Any chance your battery lost its charge while the car was out of use? It would explain a slow crank and lack of starting.
I rebuilt my top end in the spring and noticed no difference in trying to start the car with the new rings and honed cylinders.
Double check that all of your spark plug wires are connected and on the correct cylinders.
I know these are simple ideas, but hopefully helpful.
The last thing that you want to do now is pull the motor again.
One last thought, you did adjust the valves?