upgraded bypass valve?

I upgraded my stock novi 2k pulley to a 3.00 inch, and now my bypass valve is leaking. It'll only let boost get up to 12 psi.

I've been looking at better bypass valves, and am having a hard time deciding which one to get.

Would upgraded stock bosch style valves (like these: http://www.stratmosphere.com/hyperboost.htm )be able to flow enough air to bleed off the boost fast enough? It'd be nice to be able to change just the valve itself, and be done. Not to mention they're cheaper.

If one of those won't work, is there a valve that will mount on the pad on the discharge tube if I drill and tap it? Possibly the vortech maxflow racing? I'm trying to find a pic of its mounting flange, but can't find a good one.

Thanks!

Okay so it looks like the maxflow racing bypass would mount to the flange on the discharge tube. Can anybody tell me if it'd work there for sure?