[Clutch]

You guys are on CRACK! You can't "Port" your t/b because your not changing the butterfly size!!! I agree, that yes you can smooth out the casting to help decrease the air turbulence, but I wouldn't agree with the "Size" gain. That lip inside the t/b is for your benefit. Its there to help seal the t/b on idle. I wouldn't recommend removing it, if your going to be tuning your air/fuel in the future, as this would cause problems with air flow readings. (setting your base calibration off)

Don't get the cam gears until you have your other "mods" done, then if your going to do some pulls on the dyno, that is where you will be able to make the most from your investment.

I'm not trying to badmouth anyone, just my $0.02 from what I've learned...