Anyone have pics of Trailbeasts HEI conversion?

I would mount the ECU close to the distributor, since you want the pickup wires short, and don't run them near any spark plug wires or you will get "feedback", like a microphone near a speaker. Also, twist the 2 wires tightly. On my slant six, I mounted the ECU on the inner fender, using an old CPU heat sink w/ fins and thermal grease. The ECU to coil is simple, just grab the GM cable that connects them when at the junkyard. The other half of the coil connector is a red wire for +12 V "ignition" power and white wire that can go to a tachometer.