2nd the Innova dial back timing light. The light is very bright. The dial back feature is way nicer than trying to use a degree sticker that always flies off the balancer. O'reillys and other auto parts stores carry them in stock.
I just did my 79 K30 with American Auto Wire kit #510347. Came out great. The alternator power wiring and main cab power arrangement is much better than the stock setup. Hardest part was mastering the old delphi-packard crimp connectors.
Positive wire from sending unit top terminal to fuel gauge is grounded. If you pull the positive wire off the top terminal the gauge should read way past full.
Hi Folks
My K30's power steering pump has two return ports. One faces up and one is angled down. I have the power steering box draining into the upward facing return port. The hydrobooster drains to the downward facing port. Is this correct and does it matter which return goes where?