Take a look at googles webmasters guides and see what they think of cloaking (which is what you are talking about doing):
Quote:
Cloaking: Serving different content to users than to Googlebot. This is a violation of our webmaster guidelines. If the file that Googlebot sees is not identical to the file that a typical user sees, then you're in a high-risk category. A program such as md5sum or diff can compute a hash to verify that two different files are identical.
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You may find this article interesting when looking at your queries per page -
How Many Queries on a New Installation