TBI Throttle Body Injection discussion and questions. L03/CFI tech and other performance enhancements.

Need help picking a intake manifold for my TBI...

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Old Jul 21, 2006 | 06:28 PM
  #1  
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From: Columbus
Car: '91 Formula
Engine: 5.0 TBI
Transmission: 700r4
Need help picking a intake manifold for my TBI...

I new at modding my '91 Formula 305 TBI and am having trouble finding intake manifolds for a TBI. I've read the stickies up top about the Edelbrock, Holley and the ZZ4 intakes, but I'm having trouble actually finding them on the internet for sale. Can somebody point me to a place that sells them for TBI's or give me part numbers for each so I can look them up? Thanks for your help.
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Old Jul 21, 2006 | 06:32 PM
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From: Baton Rouge, LA
Car: 89 RS
Engine: 305
Transmission: th350
Alot of people buy regular carb intakes and get a Carb to TBI adapter. Since there is many diffrent styles available for a carb.
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Old Jul 21, 2006 | 06:53 PM
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From: Columbus
Car: '91 Formula
Engine: 5.0 TBI
Transmission: 700r4
Originally Posted by Necro
Alot of people buy regular carb intakes and get a Carb to TBI adapter. Since there is many diffrent styles available for a carb.
Where can I get a carb to TBI adapter? Thanks.
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Old Jul 21, 2006 | 07:00 PM
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From: Baton Rouge, LA
Car: 89 RS
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Throttle Body Adapters, Carbureted Manifold - summitracing.com

You can also get them at Auto Zone in the performance section.
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Old Jul 21, 2006 | 07:05 PM
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From: Columbus
Car: '91 Formula
Engine: 5.0 TBI
Transmission: 700r4
What about this intake manifold?

eBay Motors: Like New Edelbrock SB Chevy TBI Aluminum Intake #3704 (item 280009357992 end time Jul-26-06 08:02:42 PDT)
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Old Jul 21, 2006 | 11:44 PM
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Car: '90 RS
Engine: 377 LSX
Transmission: Magnum T56

That is the edelbrock TBI manifold. It is perfect for the direct 100% bolt on aspect and can be bored to 2". It is an all around decent manifold. I would spend the money on exhaust parts (headers and cat-back) before I spent it on an intake. Your power gains with this intake on an otherwise stock motor are negligible.
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