engine problems......help.....again

[bojak]

350 tbi. Took it to alignment shop, fired up and ran great there. Fired and great when they test drove it. I went to leave and nothing. Wouldn't even turn over, no clicking, no nada. Had to leave it overnight, came back next morning ready to swap starters in the parking lot. Tried it first because I believe in always start at the easiest solution first, and she fired right up like it never happened. Drove her home, ran great. Did a couple of test fires over the day with no problems. Son wanted to take her to get wings and since it's close I said fine. Fired and drove great. Went to leave, nothing but radio, no clicking, no turning over, zilch. Left it, came back this morning and fired right up. Does the crew here have any ideas as to what is going on with this? Also my engine is running rich but I am fairly sure that is a separate issue. Rich as in a set of plugs with less than 3k miles on them look like one out of a 89 snapper mower. Any thoughts or suggestions are appreciated.