Mustangdemon67

just a little bit of info on the electric fuel pump. mount it as close to the tank as you can. those pumps push better then they suck. the closer to the gas tank the better

jcomp

falconfixer: At startup the engine will start with the reserve of fuel kept in the float bowls of the carburetor, so the pump isn't really needed. I'm guessing you'd still need some sort of override switch to prime the system when the float bowls are empty.

eep: I've never actually used the oil pressure cutoff so I don't know all that much about them, except that the instructions for my holley pumps have always said I should have one. You can get an inertia switch out of a car in the junkyard, it will cut power to a circuit if it is hit hard. My Mustang has an interia switch and not an oil pressure switch. I have my inertia switch wired to kill power to the entire car in the event of a collision.

The instructions for your pump and fan should specify how much current they draw and the recommended fuse size. If that's not available, I'd guess that 15A for the fuel pump and 30A for the fan should be OK, but I suggest you call the manufacturers to make sure.

When you wire your relays it will be a lot cleaner and easier with some premade connectors. These guys have them and they also carry the relays for a good price:

http://www.robotmarketplace.com/marketplace_relays.html

If you'd rather get the stuff from a junkyard, this site has some useful information:

http://members.shaw.ca/pekpress/electronical.html