Wiring thoughts

[48builder]

I'm getting ready to work on the wiring harness for my Z28 transplant. A couple of things I need to find out.

Does anybody know of a good source for a Helms manual? A few years back they were $95 and I put it off, and now they are $135

I'm going to take out all of the SIR wiring. I know they are not connected to the PCM.

The EBCM and all ABS wires are coming out as well. I'm not sure yet if they are connected to the PCM, but I think they only are for traction-control vehicles. Again, once I get the Helms book I can tell.

It looks like everything else will be a piece of cake.