[JLMounce]

Don Johnston at DCI swears by the Go Pro 4 system and uses it in many of his builds.

The ECU is a nice piece and the system uses quality OE grade harness connectors etc. Considering you get an intake manifold and distributor along with the system, the price point is really decent.

I have run a FiTech 30001 system for over 10 years. It's been incredibly dependable. In that time the only thing I've had to replace relating to the system was the main harness connector. The very early units underestimated the fuel pump amp draw and had an undersized connector and fuel pump wiring. I replaced the connector with a GM weatherpack connector. That cost $40.00 and took an hour of my time to replace. Otherwise the system has functioned flawlessly for 10 years and about 30,000 miles.

Most of these entry level EFI systems all have the capability to work well and last a long time. The installation and the fuel system is vitally important for that though. You should plan on completely redoing the fuel system from the tank forward. You want an EFI ready fuel tank with an internal sump, a quality fuel pump in that tank and I still prefer to run a supply and return line from the tank to the engine and back. Stay away from frame mount in-line pump systems or those reservoir systems you add to your factory fuel system. The tank and in-tank pump will initially cost a little more, but you'll thank yourself when you don't have to mess with inadequate fuel.

You should also take care of any electrical issues the car may have before installing an EFI system. If you have any charging issues, electronics that are non-functional, corroded wiring etc., all of that needs to be taken care of first. Adding EFI to a car with poor electrical will cause more headaches than it's worth.

Then make sure the exhaust is in good shape with no leaks. This is another critical item to success with EFI. Exhaust leaks prior to the oxygen sensor or within about 18" behind the sensor will create a poor running system.

If you've got a good foundation to start with and don't cut corners on the install, I think going with a Pro Flow 4, Sniper, FiTech, FAST etc are all going to do what you want them to do.