Ok I think I understand the relay and oil pressure switch. Definitely don't want to be spraying gas on a hot engine. I found this site and it looks like a pretty good rough guide to follow when I am ready to put in the fuel pump in.

http://www.how-to-build-hotrods.com/...fuel-pump.htmlhttp://www.how-to-build-hotrods.com/...fuel-pump.html

Is this good info to follow or is there better info out there?