I went to install MSD boots and retainers and when trimming the ends back found about an inch of bad wire.:banghead: This along with the boots coming off regularly would explain a lot of misfire and vibration!!
:biggthumpup:This is a common prob with the stock 10 strand Yami plug wires. If the wires are broken too far back, I have a local guy who can replace the plug wires with high quality 20 strand wire.