@Ceseuron posted:I'm probably not alone in saying this, but if you talk to any serious engine builder they'll likely tell you the only way to do EFI on a classic V8 is to do a multiport or Hilborn 8 stack style EFI setup with a fully programmable ECU and have the car tuned by a knowledgeable tuner on a dyno. That way the tune fits your exact car with your exact powertrain. While my experience with these "self tuning" systems was affected by admittedly crappy engine build issues, I still kinda got the feeling that it spent more time learning than it actually did running.
I did keep the 383 that came out of the Pantera, and I've been toying around with the idea of finding something else to destroy my bank account on. I may revisit the EFI question when I figure out what that may be.
I agree with getting a system that is fully tunable. The self tuning features that these systems have is a bit limited. Although the individual stack EFI systems are nice, they are complicated and expensive. I am using a sequential port system with the four barrel style throttle body design and it works great. There are lots of classic muscle cars running around on the street and at race tracks that are using these systems and they seem to work fine. If you get one of these systems, the best place to have it set up and tuned is at a shop that specializes in them. They generally know the software and how to set everything up. They can also put the car on a chassis dyno and get the most out of the tune. No matter how good the mechanic is, if he can't get into computer program and see how the system is set up and know how to make the necessary adjustments, then he is just wasting his time and your money.