Got a Haynes manual coming just out of habit (for any vehicle I ever own). But not sure what to download, unless you meant to drop a link?

Just read your signature, impressive stuff. I am interested in doing a few mods if I can, wondering which ones on your sig top line would be best bang for buck in performance and/or economy? I have heard about EGR removal, but not sure what it does to the vehicle or how it differs without. Interested if you care to explain?
thanks

The EGR thing was discussed too much, here's a good one Benefits/downsides on removing EGR valve

Wow, what a download! THANK YOU. Will have a read of that thread.