[Plugin: Quick Cache] Need do action hook to call by plugin

You can use my solution:

http://wordpress.org/support/topic/plugin-quick-cache-speed-without-compromise-wp_update_post-doesnt-purge-post-cache

with this code:

$my_post['ID'] = 999;
$updated = wp_update_post( $my_post ); //return updated post id or false

which updates post modification time and triggers cache clearing