Make it simple. Get a strong switched relay. Wire it so you control it on the dash. Flip the switch for about six seconds prior to starting the motor when cold. When it's warm, run for a second or two if you do it at all. I did that on my 85, worked great. If you crank for five seconds with no reponse, stop cranking and flip the switch again. When it was -50 in Alaska, I'd leave them energized when I started cranking, and would let go of the switch after it was stable. (I was running the 60G plugs which can handle extended glow cycles.)
One think I forgot to mention that you need, a second battery. Without two batteries you will have starting issues.
05 2500HD CC LB LLY, 4x4, 3.73s 235/85R16's, webasto cab heater, to keep it warm.
03 Buick Rendezvous - When you average over 80 miles per day driving around, you need one of these.
85 K-5, 6.2, SM465, Rockwell T221, 1 tons, 36's. More goodies to be installed as time and money allows.
82 K20, 6.2, SM465, NP208, stock except for bed rack, snow plow, and glow plugs are on a toggle switch. It works great for plowing!
72 Postal Jeep - Yet another project
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