Page 2 of 2 FirstFirst 12
Results 11 to 12 of 12

Thread: Holley list 4548-S 450 cfm metering block

  1. #11


    Yea Troy, I'm thinking the samething. Just not sure enough to try that block just yet. I have tried to get through to Holley's tech line but the wait has been long and I just give up. Just have to keep trying...your help has been great. Thank You ever so much...John

  2. #12


    Hi johnrodz. Not sure if you still need help, but if you do, the correct numbers on the Holley 4548-S primary metering block are 6343 and below that number is 4548. Some don't have the 4548 on them below the 6343, but most that I have seen do. The secondary metering plate is #30 and below that is 34R-2007 B. Rick

Page 2 of 2 FirstFirst 12

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