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What is the difference between the intake manifold TPI

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Old 01-06-2018, 01:00 PM
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What is the difference between the intake manifold TPI

Hello I want to buy a manifold but you got more than a number for the same piece is there among them
I want to install it on the 305 TBI engine
https://www.ebay.com/itm/85-Corvette....c100011.m1850

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https://www.ebay.com/itm/1986-Corvet...-/391431742729

https://www.ebay.com/itm/162807902829
What is the difference between them I want to install on the TBI 305 engine
Old 01-08-2018, 09:25 AM
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Car: 1984 Trans Am L69
Engine: Sniper EFI Powered 355
Transmission: WC T5 w/ Steel Support Plate
Axle/Gears: 3.42 10 Bolt Posi
Re: What is the difference between the intake manifold TPI

There was a slight bolt pattern change between 85 and 86 vs 87-92. I am not sure what is different on the corvette version.
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Old 01-08-2018, 09:27 AM
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Car: 89 GTA ASC Conv., Prev: 89 GTA 6.3L
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Re: What is the difference between the intake manifold TPI

center 4 bolts (2 on each side) on Corvette were different angle. You will see some intakes drilled for both.
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