I recently discovered this site and just found this discussion. Just last week I had basically the same trouble with an HEI unit that I cleaned up, put some new parts in and put in my Grand Am. I checked everything and was real frustrated when it would'nt start 90% of the time. It turned out to be my pickup coil was the problem. I learned the hard way that you are not supposed to take it appart. I did this when I cleaned up the distributor. I bought a new Wells pick up coil at Auto Zone and now it starts right up. It is good to know that they can be adjusted with care.
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