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Old 01-01-2011, 08:14 PM   #10
joff
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I used the OEM intake gasket to port match the LIM to UIM, and the gizzmo phenolic gasket to port match the LIM. It wasn't a lot of material but it sure did take awhile with the dremel.

Now that its done, I'm not sure if this was a good idea or not, as a local rotary expert told me that while it will help top end power by a few hp, it may create excessive intake reversion and low speed cruise backfiring/sputtering. Anybody else have any experience with this?

I'm hoping the effect is minimal on my mostly stock ports as I anticipate a bit of a driveability loss already by replacing the stock throttle body and loosing the way it opened up the primary butterfly first.

Xcessive LIM top (to stock UIM):

Xcessive LIM bottom:

stock UIM (to LIM):
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