I was scoping around and found your build thread, I like where this is going.
If by any chance you'll be back in March 2013, you should put her on a trailer and bring her down to Houston for TX2K13. A handful of friends and I will be bringing our 240's to attempt and hold it down at a Supra event.
I'm running a 7175 as of now, and I hope you enjoy that 6766! I ran a 6765 and it pulled nicely on a stockish motor/15.8lbs. Good luck to the build, and before it's too late, get a Tomei pump to sleep easy at night!
Here is some future inspiration for your build!
I'm still waiting for mine to be back up and running 100%.
Built RB30 +
74mm??? | 775WHP
Built RB26 + 71mm | 800WHP
RB26 + GT42 | 800WHP