How do you get Solr Views to query Acquia Search?
Acquia search :
A search service provided by acquia which in-turns uses the Apache Solr search inside. Currently they are updated their acquia search with Solr 3.5.
Apace Solr Views module :
Module when enabled converts the views query from a database query to apache solr search query.
While enabling the Apache Solr Views module it will look for the apache solr configured in the drupal system automatically.