Results 1 to 2 of 2

Thread: Wiring 7720 & 7730

  1. #1

    Default Wiring 7720 & 7730

    Hi All. Newby question. I'm just wiring in my new 7720 & 7730 The wiring diagram says the two heavy battery wires coming out of the 7720 should go directly to the battery positive & negative.
    My questions are:
    1) Should I run a fuse? And if so, what size fuse should I be using?
    2) Also should I wire it after the isolation switch or directly to the battery so that the unit is powered permantly?
    Thanks in advance

  2. #2


    Can anyone help? I'm hoping to get this installed today.

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