Have you changed your oil??
Streets is right - if you had to remove spark plugs to blow out the extra fuel, then your oil has gas in it too. That will cause it to try & sieze.
If you had a running motor when it came out, and all you did was pull the dist. out to prevent damage to it , than all you need to do is get back to the basic's.
Change your oil, you have washed down the cylinders with gas and the rings are dragging. this will make it hard to start.
Then set your timing up again.
Then it should start.

Good Luck