Hot Rod Forum : Hotrodders Bulletin Board - View Single Post - Q jet B port ?
Thread: Q jet B port ?
View Single Post
  #2 (permalink)  
Old 02-09-2007, 09:59 PM
curtis73's Avatar
curtis73 curtis73 is offline
Hates: Liver. Loves: Diesel
Last wiki edit: How to find cheap parts
Last journal entry: Found an LQ9 today
Last photo:
Join Date: Dec 2005
Location: Carlisle, PA
Age: 43
Posts: 5,472
Wiki Edits: 16

Thanks: 31
Thanked 52 Times in 44 Posts
If it sources below the throttles its manifold
If it sources immediately above the throttles its ported.

Many Qjets had a higher vacuum source just below the boosters that was a venturi vacuum. It was used for multiple reasons over the years, most of them dumb

Some Qjets also have a positive flow source above the boosters on the secondaries that should not be confused with a vacuum source. Its a positive flow that draws warm air over the Thermostatic air door in the snout of the air cleaner.
Reply With Quote