Well it looks like one way or the other I have to go back in and find out whats up. They sat on the shelf for a year, some corrosion may have found its way inside of a few. In that case may as well buy a new set and be sure.

I have not put the engine under load, but one person I spoke to said he put his engine under load and drove it around for a while and it cleared up this problem for him once in the past. Just not sure why that would matter.