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How much should I gain?

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Old Jul 31, 2007 | 08:38 PM
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H&C 99Z's Avatar
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Default How much should I gain?

I have a 99Z28 with the below mods.
M6
"Stock 99 LS1 intake manifold
233-233-578-113lsa
Stage II Ported 241 Castings
28.8lb Injectors "Maxed out"
1 3/4 Mid-lengths and a bunch of small items.
Custom Tune
437rwhp and 398rwtq is what it dynoed a month ago.

I was going to add the the below items and I was wondering what I should pick up power wise.

85mm Polished T/B
85mm Professional Products intake manifold. "Block off EGR"
42lb Injectors
New custom Dyno Tune.

Thanks for any input..

Dustin
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Old Aug 1, 2007 | 08:00 PM
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Nobody knows?
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Old Aug 1, 2007 | 08:15 PM
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venom ws7's Avatar
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From: EARTH
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The intake and TB Will give 15-20rwhp.
If you can get A set of LT Headers.

BTW Your numbers are great with 241 heads and small cam.
Good luck.
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