« previous next »
Pages: [1]   Go Down

Author Topic: Oldsmobile 70-74  (Read 1087 times)

Offline mcx

  • Carb lover
  • ***
  • Posts: 140
Oldsmobile 70-74
« on: March 06, 2019, 12:22:56 PM »
Hello Cliff...I was curious why Oldsmobile would drill the primary throttle blades when it already has a idle air bypass circuit?...everyone i see on EBay has those holes drilled added to the blades.
Logged

Offline Cliff Ruggles

  • Administrator
  • Qjet Hero
  • *****
  • Posts: 5432
Re: Oldsmobile 70-74
« Reply #1 on: March 07, 2019, 03:29:37 AM »
Not sure why.  Some Pontiac Ram Air carbs also have drilled throttle plates.

I prefer to add idle bypass air with the bypass system vs drilling the plates......Cliff
Logged

Offline mcx

  • Carb lover
  • ***
  • Posts: 140
Re: Oldsmobile 70-74
« Reply #2 on: March 07, 2019, 11:10:34 AM »
...yeah, this carb 7043252 has the base plate idle bypass at .059" and the throttle plates drilled at .111"
...I keep searching EBay for a cheap early 70s Pontiac version just so I  can have one to compare..soon enough.
Logged
Pages: [1]   Go Up
« previous next »