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diff. between throttle bodies?

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diff. between throttle bodies?

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Old

Jun 8, 2006 | 09:34 PM

#1

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Joined: Aug 2004

Posts: 239

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Car: 88 GTA

Engine: 305

Transmission: Manual

diff. between throttle bodies?

I was just browsing through some sites and noticed that BBK and Holley throttle bodies are year specific; 85-88 and 89-92. What exactly was the difference between the throttle bodies on these years?

Old

Jun 8, 2006 | 09:37 PM

#2

NoItsNotForSale

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Posts: 661

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From: Bonham TX

Car: 87 & 89 Iroc's

Engine: 5.0 - 5.7

Transmission: 700R's

Axle/Gears: 2.77 - 3.70

Throttle cable hookup.

Old

Jun 8, 2006 | 09:47 PM

#3

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Joined: Jul 1999

Posts: 10,950

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From: Orange, SoCal

Car: 1990 Pontiac Trans Am

Engine: 355 TPI siamesed runners

Transmission: Tremec T56

Axle/Gears: 12-Bolt 3.73

The IAC passages thru them are different too.

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