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For a 12a or 13b? Help

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Old 08-28-07, 07:20 PM
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For a 12a or 13b? Help

I got this intake spacer in a rx I just bought. I have some intake manifolds laying around but can seem to match it up with a 12a or 13b intake manifold? It just about fits the 12a manifold but there are two bolt holes that are just off center. Can anyone help?
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Old 08-28-07, 07:25 PM
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Looks like it's for a 12a. Drill the holes out if it doesn't fit. Maybe a 4-port 13b???
Old 08-28-07, 07:47 PM
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Is it worth fooling with? What would it do for performance?
Old 08-28-07, 07:53 PM
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They add volume to the manifold plenum's / runners. and allow the Air fuel mixture to mix more evenly.

...it's not worth it...just send it to me in the mail....


Yes it's worth it.
Old 08-28-07, 07:59 PM
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hey thanks for the advice 84 GSL
Old 08-29-07, 02:58 AM
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It's nothing but an adaptor. Looks like it's for running a 12A intake on an old 13B. It won't do anything in terms of performance.
Old 08-29-07, 02:02 PM
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Well carb spacers and TB spacers help performance, so why wouldn't one directly on the manifold help? Not saying it'll add a noticeable difference, but it should do something.
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