Help! "Z" enthusiasts! Checked most posts and haven't found this discussed yet, so thought I'd throw it out there and see if you've any suggestions about my weird idle issues. Car starts fine, but after revving it up to 3.5k, the tach starts floating at higher rpm's. When I get off the gas, it wants to die, then goes into a bouncing, revving/dying death throw. When I turn off the ignition and restart it, it idles fine again until I rev it up and then it does it's thing again. Replaced the distributor/coil, and found a bad tach wire and fixed it. Ran good for a couple of quick jaunts, but then started doing it again. Any suggestions would be/are welcomed. Thanks...