Rev, give the car some time to break-in. When I put my TW's on it seem to get faster with each time at the track. I know this may seem odd, but seriously, I went from a 13.8 @ 101 to a 13.3 @ 105 within one summer and only minimal mods after the heads (alum. D/S and subframes, if I remember correctly). I don't know how it happened, maybe the computer just had to re-learn everything??? (Or maybe I just started driving better!
)
Anyways, keep us posted on any new track times.
Take care,
E