Need electrical help with my 95

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Hi everyone long time lurker here, im building a special project using my 95 tahoe i have owned since new. I am transferring the full drivetrain to my 66, i have my reasons (the body turned to swiss cheese) please do not get mad.

I would like to find a detailed diagram of the ignition harness, my goal it to splice the old chevy ignition to the new harness but i noticed there are extra wires. A quick internet search and i didn't turn up anything. Any help would be appreciated
Im running a 1995 tahoe 5.7l with 1999 4l603 2wd trans with full harness from the 1995.

 

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The little brown and green???? Can i jump them together? Are they some kind of theft deterrent??
Large brown wire????
Black is ground???

 

[MO Viet Vet]

I sent you info at your other post about this.