I live between South Brunswick and Princeton, actually across the 'street' from Princeton and I couldn't find one.
I believe - IIRC - u asked this question here b4 and the thing is:
I don't believe there's such a thing as a good mechanic - at least not in my case when the car is modified - since many CEGers arrived at the thorough knowledge about their cars just by trial and error and advice from other CEGers thru the years. Now, even the so-called racing/motorsport facilities - most of them know Civics, Integras, and Eclipses but are absolutely unfamiliar with our cars. Besides they charge you these rediculously high bux and still u are not sure what their level of expertise/honesty is.I would say your best bet would be finding a CEGer in NJ - or more realistic in Bucks county/Eastern PA and try your luck with him/them.
If you find one - PM me as well.