Drilling the Fitting

I've bypassed the BCS, and drilled out the fitting leading to the BCS to get more boost. I plan on adding a how-to to my web page, with boost/drill bit size information. The sizes and boost amounts I have so far (reading off of a 21-year old stock boost gauge, estimated to the nearest 0.5 psi) are below.

Stock - About 16.5 psi.

Drilled out to 3/32" - About 18 psi.

Drilled out to 7/64" - About 19.5 psi.

Does anyone have any other information on drill bit sizes/boost levels that I should add?

Thanks,

Page is up at http://www.mikewalsted.com/bcs.html. If anyone has additional values or advice, feel free to let me know.