I grabbed up an old module from my way used GM hei and put in it and it fired right up. I initially got the timing close enough to run in the engine and recently attempted to fine tune it.Īs mentioned the truck hasn't been out of the shop since the engine went in so I'd say the SW dist has only a few hours run time on it. This engine I put in the truck some years ago and it's not been on the road yet. I bought the Skip White dist some years ago not for it's 60,000 volt claim but it was good looking, complete and delivered for $50. But I've only run stock coils, or high quality MSD, or Crane units. I never had problems with HEI systems with any digital lights either. And that means excess EMI noise in the whole electrical system. Any more voltage, and the power is likely dissipated as heat, EMI, RFI, etc. A stock coil (45,000 volts or whatever they put out) is plenty for a street vehicle. I don't recall ever seeing my Sun light jump around on a good ignition system.īut then again, I also don't believe in those coils that claim 60,000 volts, etc. It's best to keep a tried and true light laying around just in case. and I also use it if I ever doubt the readings on the Innova. I have an very old Sun (non-dialback) light laying around that I trust to test my sanity, TDC, timing stability, etc. I've had two Innova lights, digital readout failed on the first one, they aren't the most rugged lights. I stopped trusting them and switched to digital lights. Not sure if it corresponds to HEI or age of my light, but the dials just seem to get scratchy after a while. I had issues years ago with the older dial-back timing lights. So do i maybe have a faulty timing light or do i need one solid core wire to put on number one plug just for timing purposes? Im thinking ill try to buy one solid core wire for test purposes, way cheaper than a new light. Tdc has been checked along with correct timing tab and good damper. Irrc 1200 ohms per foot was deemed about the limit in my old motor repair manual. I tested the wires ohms and all are at the high end of acceptible. I found one guy with the very same issue on a corvette forum but he did not update his thread with a solution. My timing light is a craftsman w/dialback. They arent high dollar wires but have a lifetime warranty. I have new wires from O'Reillys and may be experiencing this very thing. Ive seen mention of some timing lights not reading some types of plug wires correctly, as in timing line appearing way off of timing tab. Ive been reading a lot of threads about plug wire selection and preferences.
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