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Thread: MSD vs generator/voltage regulator/resistor from original

  1. #1
    Registered Member
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    Jan 2022

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    MSD vs generator/voltage regulator/resistor from original

    So I am upgrading my 56 bel air from a 245 V8/powerglide trans to a 350 V8 with 700R transmission. I am redoing the wiring with a wiring kit from american autowire. Maybe this question has already been asked and answered. But I am having an HEI distributor put in with the 350. I am thinking about going with MSD ignition. I haven't ever had that so does that mean I can get rid of the generator/voltage regulator and resistor for the coil? Or do I still need those things with the MSD ignition? If not, does anyone have any recommendations for the MSD ignition? Thanks

  2. #2
    Registered Member 56ls408's Avatar
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    Jul 2020

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    The MSD ignition has nothing to do with the charging system generator voltage regulator.Since you are replacing the wiring harness I would consider replacing the current generator v regulator with something like a 12SI 100amp one wire or 3 wire alternator for a much better charging system.I would also choose to use a small cap HEI distributor for better cap to firewall clearance.Something like a Ready to run MSD distributor or other small cap versions.For a street cruiser you don't really need the additional MSD ignition box just adds more complexity to the system.Just my opinion

  3. #3
    Registered Member busterwivell's Avatar
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    Sahuarita (Tucson), AZ
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    I agree. I did the same combo you are doing. I have a 350/700R4. I installed an HEI and an American Autowire complete wiring kit. I installed a 100 amp one wire alternator. No MSD, no need. car runs and drives excellently, No charging problems even with AC and other power accessories. Been fine for 32,000 miles.

  4. #4
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    Good information. Thank you both for the help.

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