Hi, Rick from Granite city il. Work at a steel mill for a living .Work on cars for a hobby . I have build several cars start to finish, but have always stayed clear of electronics.It is something unfamiliar to me . Bought the HP tuners to turn off the D.o.D. System in my dads 07 silverado . we tore the truck down for cam and lifter swap and had it back together for a month before we could get it running . while troubleshooting it .. i have become more familiar with it and am going with my first Ls build ,an 06 express van drivetrain in my sons 70 GMC shortbed.I think with a Mitchel wiring diagram , lots of forum crawling , and several calls for a lifeline , i can make it happen . Thanks in the advance for any assistance .