EGT, CHT and spark plug wires; together OK?

[dbwindom]

I have a SkyView system, dual P-mags with auto plugs.  What's the rule about bundling the probe and plug wires together?  Aren't they all shielded? 
Right now, I have ALL wires bundled through a single firewall penetration.  Is this an acceptable procedure for the CHT and EGT wires?
Out at the cylinder heads, I'm also looking to bundle/clamp these 3 wires (EGT, CHT and plug) together at various places to secure them.  Will this be OK?  Any suggestions on how to run these probe wires?  Thanks.

 

[mmarien]

Bundling the probe wires is Ok, but I think P-Mag suggests separating the spark plug wires. Unlike mag wires, there is a lot more power going through the electronic ignition spark plug wires and there is a chance they will short through the insulation. Automotive spark plug wires are normally separated for just that reason. Search Youtube for "separating spark plug wires".

I separated the spark plug wires by tie wrapping short chunks of vinyl tubing between them and tied them down to the fire sleeve on my fuel rail. I ran all the EGT and CHT sensor wires on the inside of the exhaust/intake pipes. The problem is drilling the holes for the EGT probes on the inside of the exhaust. I did mine while I had the exhaust off.

Putting the probe wires inside separates them from the spark plug wires and makes the engine wiring look cleaner.