Bb Help

[robermj1]

I have a 466 that after my first trip out I had to stumble home. When the car is at idle to 2000 rpm it shakes really hard. I have checked the valve lash, rechecked the timing, when I shorted out the wires I have 3 cylinders not firing, mind you this is a new set up, motor everything, I am running a digital 6 box with coil, msd dist. I am running out of ideas, so I am asking for some help. once over 2000 rpm it smooths right out. Help needed, also there are no vacuum leaks checked the intake everyting I can think of, unless I am now the owner of a flat cam, but I cannot figure out why 3 cylinders are not firing.

[xlr8or]

Try moving the wires on those that aren't firing to other cylinders and see if the problem follows them.