OOK!, Fire in the carb!

[Nima]

Alrighty!, with all your help, and explanation, I took of the distributor and then brought the #1 to TDC(I think at least), After a little struggle, I was able to sit the distributor in place. Engine tried to start and started but idled very very rough. If I let the gas go it dies right away, even with my foot on the pedal it dies sometimes. I tried to rotate the distributor a little at the time but one of this time after engine tried to start, boom! a loud sound and I had fire in the carb!. Nothing happened majorly, as soon as I let the gas go, fire stopped too!. Any comment would enlight this dummy!. I am not sure if I had connected my electric choke. Could it be related to that? For those of you who don't know the story, I changed the intake and carb and valve covers but I couldn't get the engine to start.
Thanks