General Category > Quadrajet Carb Talk and Tips

Main Well Bleed Tubes

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kelley555:
Omaha,it's best to explain the Q-jet to Holley deal with tail lights or taking their money. I here it daily from different people. I'm can't wait till the q-jet tells the tale.It was a lot of work,thinking about what your doing. Maybe,ruining a carb,it can happen with self taught exprience,but we had Cliff's book &  his forum. I'm filling in the Motown emblem off the casting of the block & looking for some low hp stickers. The 350 hp stickers are coming off the valve covers,probably too much hp,210-250 hp or 265 ci. The story is simple,my friend's Mom gave me the motor & she out ran everybody at church,even the preacher. She's an Indian Giver though,if she catches me hot rodding or tearing up  the motor. It go back. That's the deal,crazy talk. Now I wish I hadn't made the Q-jet carb as pretty. The Hei will be as low keyed as the Q-jet. A big reason I picked the Holley Z-28 type intake was everbody's using the Edelbrock Performer Air Gap . I'm gonna have some fun with this motor swap & get my money's worth. It's better to act or be ignorant & talk in circles. Later Kelley

von:
Back to my original question: Is the "Secondary Tube Restriction" referred to in the book recipes the same thing as the "Main Well Bleed Tubes" pointed to in the picture on page 126? Cliff?

kelley555:
Let me clarify main well area,the small brass tubes from the air horn sit in 2 small rd. wells to the side of the  secondary jet hole.Theses jets are in the main well.That's one area I didn't blow air thru to see how it connects. My bet it would be the secondary air bleed well for secondaries & the  main well. Especially since the secondaries wells get fuel from the main well thru a small hole. My bet call it's the secondary tube restriction or secondary air bleed tube or main well bleeds.My opinion these tubes probably still bleed the main well since it's connected.Cliff,can you verify the right name for us?Later Kelley

omaha:
yes the tube restriction is the picture on page 126 (called the main well restriction). you notice that the end of the tube is tapered down. this is the tube restriction...right on the end of the tube.
it is almost always .036.
    The secondary POE restriction is the holes drilled just above the air flap towards the front side of the flap. (in the top casting)
   The well restriction for the secondaries is the small drilled holes that feed the secondary wells (with fuel from the bowl area. (main casting)

von:

--- Quote from: omaha on December 05, 2010, 08:25:05 PM ---yes the tube restriction is the picture on page 126 (called the main well restriction). you notice that the end of the tube is tapered down. this is the tube restriction...right on the end of the tube.
it is almost always .036.
    The secondary POE restriction is the holes drilled just above the air flap towards the front side of the flap. (in the top casting)
   The well restriction for the secondaries is the small drilled holes that feed the secondary wells (with fuel from the bowl area. (main casting)

--- End quote ---
I was 99% sure the secondary tube restriction was the same as what's called the main well bleed tube on page 126 but wanted to verify. In my way of thinking I'd call the orifice  the "secondary bleed tube restriction".

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