I had the same car and did only those two same mods and it made a huge difference in power but at the expense of my gas mpg going down about 3-4mpg (same driving). The car ran very rich as the tailpipe was very, very dark. This was just my experience and my guess is that it varies somewhat.

The car ran super well and there were no idle issues. The only downside was decreased mpg. I'm sure there would have been more power had I leaned it out a little.