Results 1 to 2 of 2

Thread: ballast or no ballast?

  1. #1
    sandcraft Guest

    Default ballast or no ballast?

    Engine: 622 ci chevy bowtie talldeck, marine application, normally aspirated

    ignition: MSD pro billet marine ready to run dist. pn 83606/ and soft touch rev control pn 8728

    Question: Do I have to run a ballast resistor even though the coil I chose says to use an external resistor? It wont start with a resistor and seems to run fine without one. My concern is burning up the coil or my distributor. Thanks

  2. #2
    msdtech4 Guest



    No you do not want any resistor or resistors wires in place. You want to run full 12 volts to the coil and red of the 83606. Make sure that you have a good ground to that set up as well. Same thing applies to the 8728 unit.


    MSD tech4

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
About us
Holley has been the undisputed leader in fuel systems for over 100 years. Holley carburetors have powered every NASCAR® Sprint® Cup team and nearly every NHRA® Pro–Stock champion for four decades. Now, Holley EFI is dominating the performance world as well as our products for GM's LS engine. Holley's products also include performance fuel pumps, intake manifolds & engine dress–up products for street performance, race and marine applications. As a single solution, or partnered with products from other Holley companies - Hooker Headers, Flowtech Headers, NOS Nitrous, Weiand, Earl's Performance Plumbing, or Diablosport - Holley products can give you the edge you need over the competition.
Join us