The "wavy" fuel pressure line really isn't wavy unless the sample rate was taken too slow, which I doubt fi pressures are high.
MHO we need to be looking elsewere. Maybe here :
http://www.ft86club.com/forums/attac...0&d=1352490977
This is one of those TSB that is so difficult for the mechanic that they just check it off and hope the engine blows up