That I'm not sure on but if you swapped distributors midway through the intake installation seems to me you likely have a timing problem. I'm probably wrong, and I'm sure someone will chime in hopefully. I know how frustrating this is having just done the install myself.
I believe you want to remove your battery cables if you havent already.
Remove your #1 sparkplug which is the frontmost plug on the passenger side.
Have someone turn the crank slightly till you can feel/see the piston in the plughole at the very top of its rotation.
At this point I believe you have to put the distributor back in making sure that you get the rotor pointing towards the #1 cylinder.
Then tighten everything down.
This should get you to 0 degrees.
Now just retime it to where you want.
However, PLEASE dont do this till someone who knows better tells you otherwise. I dont want to mess you up more or possibly hurt ya. But that gives you a good idea of whats involved.
I would think that would be your problem if what you say and believe is true....that you have everything connected properly. I thought I did too, it wouldnt idle....kept dying. I had two sensors undone. SWORE i had connected them all.....DOHH!!!!
Did you listen for any vacume leaks.? Why did you have the intake off? Have you done anything else? Need more info. 
