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Old 07-03-2009   #1 (permalink)
tbunker is offline Apprentice

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Dartmouth   Nova Scotia
Default Anyone running a Quadrajet or Thermoquad?

Before I get started: nobody shoot me for asking this.

I am looking to change out my carburetor and I was wondering if anyone is running a true spreadbore on their Ford small block (you know: a Quadrajet or Thermoquad for example)? And if so, what & how? And I do understand that Ford's are squarebore and there are some inherent difficulties with mating the two.
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65 Mustang 289 C4. Edelbrock 600cfm (no more Pony Carb Autolite), Shorty Headers with 2 1/2" collector & glasspacks, Shiftkit, 5-leaf stock height rear springs, 620lbs/1" drop front springs, Gas Adjust shocks, 14x7 American Racing S200 Daisy Rims, low-mid range cam, 1 1/8" front sway bar & 3/4" rear sway bar, & ~3.80's (I think) in the rear.
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Old 07-03-2009   #2 (permalink)
cindys_sn95 is offline Made Member

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believe it or not early 70s 351 cjs and 429 cjs came with spreadbore carbs. some autolite strange cross breed. you can run a spreadbore on a squarebore manifold, just need adaptor. mr.gasket #1932.
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Old 07-03-2009   #3 (permalink)
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I didn't know about some of those early 70's Fords. Learn something new everything.

I was actually hoping to try and find a dual plane adapter but I have a feeling I won't find one.
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65 Mustang 289 C4. Edelbrock 600cfm (no more Pony Carb Autolite), Shorty Headers with 2 1/2" collector & glasspacks, Shiftkit, 5-leaf stock height rear springs, 620lbs/1" drop front springs, Gas Adjust shocks, 14x7 American Racing S200 Daisy Rims, low-mid range cam, 1 1/8" front sway bar & 3/4" rear sway bar, & ~3.80's (I think) in the rear.
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Old 07-03-2009   #4 (permalink)
tbunker is offline Apprentice

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I didn't know about some of those early 70's Fords. Learn something new everything.

I was actually hoping to try and find a dual plane adapter but I have a feeling I won't find one. But oh well. Thank you the the info though. I have found some similar adapters from Holley and Edelbrock.
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65 Mustang 289 C4. Edelbrock 600cfm (no more Pony Carb Autolite), Shorty Headers with 2 1/2" collector & glasspacks, Shiftkit, 5-leaf stock height rear springs, 620lbs/1" drop front springs, Gas Adjust shocks, 14x7 American Racing S200 Daisy Rims, low-mid range cam, 1 1/8" front sway bar & 3/4" rear sway bar, & ~3.80's (I think) in the rear.
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