Using results from a Loadjob and data from an index in the same SPL Query.

Hi all, I am trying to use the results from a loadjob but to link these to data thats held in an index. I can define the loadjob entry but I cannot appear to include the index & source in the same SPL. Both the "| Loadjob" and the "index=a source=b" loads fine in a separate SPL instance What is the best way to achieve this.