PHP requests and timeouts

I have a website that I need to set low execution times for.  Some of the php pages on the site run for longer than 10 minutes and I'd like to have them timeout at 2 minutes.

- I've set max_execution_time to 120 seconds via the php.ini, verified the setting took via phpinfo file I created.
- set the CGI setting from 15 minutes to 2 minutes
- set the "Request Timeout" setting under the FastCGI application settings for the PHP version I am running to 120 seconds

Even after an IIS reset none of these settings seem to cause a request to timeout in with the values I've set. 

Any tips? 

Thanks!