I'm going to swap out the old crusty wires in my 69 GS350 for a new after market harness, but wanted to know what anyone would recommend regarding the different printed wiring harnesses. Painless or ???? I have a 69 GS350, but I transplanted a 455 from a 70 Riviera. There are no power options on this car, but I did add an electric fuel pump and dual electric fans. I may add a high end stereo later. Just so everyone knows, I have a 21 cuircut painless printed harness that a friend gave me, but it looks like the fuse/junction box will end up inside the engine compartment and I thought it would be best if it were inside the car/drivers compartment. Away from the heat... Please let me know...