Yeah, that's where I have mine. The thing is though that you never really can be sure the road is 100% flat. So it's best to just compare your own runs to each other instead of comparing your runs to someone else's. Even if you know your road is 100% flat, you don't know if someone else's is.

My best run (highway seems flat) from after the C3 pulley was as follows:
0-10 MPH: 0.89 sec
0-20 MPH: 1.50 sec
0-30 MPH: 2.13 sec
0-40 MPH: 2.81 sec
0-50 MPH: 3.69 sec
0-60 MPH: 4.60 sec
0-70 MPH: 5.69 sec
0-80 MPH: 7.10 sec
0-90 MPH: 8.58 sec
0-100 MPH: 10.18 sec

60' 2.37 sec @ 33.0 MPH
330' 5.73 sec @ 68.8 MPH
1/8 mi 8.50 sec @ 89.9 MPH
1000' 10.88 sec @ 103.9 MPH
1/4 mi 12.87 sec @ 112.6 MPH

Max Acceleration 0.75 G's
Peak Horsepower 295 HP (this is with weight 3550 lbs, 0% drivetrain loss = rwhp)

The mph is obviously a little high compared to what would be expected with my two mods. With cold weather, and stock tires on the highway, the best results for me were from just launching off idle, letting the brakes go first, then flooring it. It's kind of difficult to tell, but the part of the highway I run it on may slightly decline the last fourth of the 1/4 mile, which may explain the traps.

One thing I noticed after the code3 install is that after 4 runs (about 5-10 minutes apart since I have to get off at an exit, then go back the other way, stop at the same point, etc.), my traps drop from 112ish to 110ish. I figure that is from IATs or reduced timing. These runs were all in November-December, so the ambient air was cool. Before I got the code3 pulley, I didn't have any issue with traps dropping after a few runs. I got the coolant separation, and mean to do that shortly and see if it helps any.

Before the c3 pulley install (so with just NW dual intake), the best run was as follows:
0-10 MPH: 0.73 sec
0-20 MPH: 1.39 sec
0-30 MPH: 2.10 sec
0-40 MPH: 2.87 sec
0-50 MPH: 3.85 sec
0-60 MPH: 4.88 sec
0-70 MPH: 6.06 sec
0-80 MPH: 7.64 sec
0-90 MPH: 9.30 sec
0-100 MPH: 11.02 sec

60' 2.29 sec @ 31.4 MPH
330' 5.78 sec @ 66.5 MPH
1/8 mi 8.66 sec @ 84.6 MPH
1000' 11.12 sec @ 101.4 MPH
1/4 mi 13.18 sec @ 109.9 MPH

Max Acceleration 0.72 G's
Peak Horsepower 265 HP (this is with weight 3550 lbs, 0% drivetrain loss = rwhp)

This was done in the same location as the other, so are comparable to each other at least. Before the code3 pulley, I could launch at about 1500 rpm with about 80% throttle, and the 60' times were a little better. After the code3 pulley, it just spins.

As a side note, my peak hp readings are always at the top of 2nd gear. Is that the same for everyone else?