Turns out it wasn't a bad coil. It was some water in the tank from lack of usage and 1/4-1/2 tank of gas left in the tank. I filled the tank added octane booster and no more "Sputter". i bought a couple of bottles of Staybil. Im also goin to have my Fiance drive the car one week a month (weather permitting) to work to run gas through the system and and keep the battery charged. Now I just have to get her to put down her 5.0 keys and start drivin the Shelby. She said "ok but its not convertable":bash::dw: