Intake manifold block off plate?
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Junior Member
Joined: Sep 2011
Posts: 46
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From: Strasburg, Pennsylvania
Car: 1991 Chevrolet Camaro Z/28 (Project
Engine: 5.0L 305
Transmission: 700R4 W/ B&M shift kit
Axle/Gears: 3.23
Intake manifold block off plate?
I recently purchased an intake manifold gasket set it came with block off plates for the middle ports. the car is a thottle body injected 305 backed by a 700r4 with a b&m shift kit. My question is would it be beneficial to install the block off plates keeping in mind its a daily driver or would it be better to just keep the ports open? explainations would be great appriciated THANKS in advance.
Joined: Apr 2005
Posts: 7,736
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From: Not in Kansas anymore
Car: 82 Z28
Engine: 383 SP EFI/ 4150 TB
Transmission: T400
Axle/Gears: QP 9" 3.73
Re: Intake manifold block off plate?
Middle port on heads are the exhaust gas supply to the EGR valve.
If EGR is not operating then you will throw a code
If EGR is not operating then you will throw a code
Thread Starter
Junior Member
Joined: Sep 2011
Posts: 46
Likes: 0
From: Strasburg, Pennsylvania
Car: 1991 Chevrolet Camaro Z/28 (Project
Engine: 5.0L 305
Transmission: 700R4 W/ B&M shift kit
Axle/Gears: 3.23
Re: Intake manifold block off plate?
thank you for your input thats pretty much all i needed to know
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