Did anyone ever have any luck burning/reading/flashing the chips from ls pcm using tuner pro xdf/adx files.I'm asking because I didn't see a cheap cable for doing this.picked up a 0411pcm os12201281dbc for $20 from 2001 Tahoe.if it's as simple as obd1 with burning chips I plan to make a harness.have a method for 1x cam signal.possibly use BBC 24x crank ring and adapt it to my front balancer. be nice to be able to use this pcm for any engine.any advice appreciated. Thanks