Hi all, my dad has been fighting a cylinder 6 misfire for a while now on his 05 srt6. He passed away about a year now and now im trying to figure it out so I can sell the car. It has just under 30k on it and has the following mods that I know, Needswings intercooler, intake, and supercharger pulley. The shop that was working the the car put new plugs all around, and coil packs and wires on cylinder 4 and 6. They said its likley the tune causing the misfire. I am not sure if its tuned and if it is by who. When I went to start looking into the car I had to replace the rcm so it would start. The car seems to idle fine and run ok on light throttle and easing into boost, but once you get into boost somewhat quickly the check engine ligh comes on and has a misfire and stays around. I cleared the code and seem to be back to normal but I drove it again and got into boost and it misfired again. I have alot of maintenance records on the car, since my dad has owned it for 10 plus years. I am trying to figure out what I should do, or a shop in maryland that knows these cars. Thanks and all help is appreciated, David.