hi mad pad,
Thanks for the reply. Sorry it took so long. Still not sure of what caused the hole, although most guesses are that the plug gap is way off / open.
However, once i was replaced, then the starting and cutting off problem started.
I was so frustraded that I went to another store (NAPA) and compared their parts to the onse from Advanced. I could tell the better quality at once. So, I bought the Napa parts and took everything back to advance. I have nothing to do with either company or mfg, but it made the difference. The vette has not stalled once. Part f the reason for the delay in responding is that I don't use it evry weekend. So, I wanted to pass some time before I was satisfied the problem was gone.
For those who played with model air planes has kids, you'll know what i mean when I say tht the plastic cap from Advance was made cheeply. The slots on the cap where the coil metal clips go thru were not formed correctly nor were they open. I had used a flat srew driver to open the holes. Napa's cap had perfetly straight and open holes. When I inserted the metal clips they went straight in and snapped in and locked. The carbon brush in the center wasalso well made, with what looked like brass collar, the other part was all one cheep peice of you-know-what.
Oh well, on to waiting for the next car show and problem.