Project update: I've finally begun the EFI conversion. I have a FiTech Go EFI 4 system (I bought it before the V8 swap was done, actually) and a few months ago I bought a new Tanks Inc baffled tank plus an in-tank pump. A week and a half ago, I put the car on jack stands and went to work. I had to craft a new fuel supply line from the tank to the engine; my stock supply line was now going to serve as my return line. This means there was lots of work everywhere in and under the car.
A few days ago, I foolishly thought I was ready to fire the engine and I tried to do so, only to have it not fire at all. It turned out that my shiny new fuel pump... didn't. Any smart person would have verified fuel flow before cranking the engine, so I'm gonna take a mulligan and not count that failed attempt.
As a small consolation, I was at least happy that I had not installed the new tank to the car; I had left it on the ground so I could check for fuel leaks... and thus I only needed to disconnect the hoses and wiring to slide it back out for a pump swap.
Summit Racing graciously shipped me a replacement fuel pump kit. Last night I finally had time to install it in the tank. After that, I slid the tank back under the car and reconnected the hoses and wiring. This time I decided to check and see if the new pump actually does, so I disconnected the fuel supply line from the FiTech and had my friend Dave hold it in an empty milk jug underhood while I tried to prime the system. On the first attempt, he said he could hear lots of air escaping the line, and then we
both heard (and saw) gasoline start flowing freely into the jug. Finally!
I reconnected the fuel line to the throttle body, then primed the system again to check for leaks. Immediately, Dave's wife saw fuel puddling at the rear axle--one of my NPT connections wasn't up to snuff. We separated it, wrapped the threads with gas-spec teflon tape, and screwed it back together to German torque specs. After a couple more primes, nothing was leaking... so it seemed like it was finally time to let 'er rip.
Dave wisely decided to begin filming:
First crank, fires instantly. That, my friends, is how you install an EFI system.