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Reload this Page oval TB

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

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Old 07-01-2009, 01:30 AM   #1
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oval TB
anyone know if it is possible to cut away the divider between the two throttle blades, and put one big oval blade in it's place? similar to the third "barrel" on the old holley 3 bbl carbs. I've attached a pic of what I'm talking about (left is before porting right is after). The main prob I can see would be finding a throttle blade to fit, or running into some cavity inside the throttle body.

Any Ideas?

-Eric
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Old 07-01-2009, 01:56 AM   #2
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Re: oval TB
well, I just went out to the garage and took apart my spare TB and found my answer, and the answer is...

nope, can't be done... well, it could, but worth it, no.
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'91 RS 305 auto T-top, paint in the works, daily driver./project car. possible LT1/T56 swap!

Muscle Cars died when big blocks ceased to be factory options
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Old 07-01-2009, 05:06 PM   #3
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Re: oval TB
many of us just opted for a 7.4L GM TB unit. Aftermarket provides a bored one just a bit smaller at 50mm.
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Old 07-01-2009, 09:49 PM   #4
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Re: oval TB
Quote:
Originally Posted by Ronny View Post
many of us just opted for a 7.4L GM TB unit. Aftermarket provides a bored one just a bit smaller at 50mm.

that still seems like the better idea, when I find one, I'm going to pick it up. can the bores on the 7.4 TB be bored any further than stock?
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Old 07-03-2009, 12:53 PM   #5
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Re: oval TB
Someone has already done the monoblade thing. There was a post with some pics a while back.
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Old 07-04-2009, 10:51 PM   #6
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Re: oval TB
does anyone know the max power a 454 TB can support?

Thanks-

Eric
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