Best EFI for a 408?

I have the Holley Sniper on mine, only have about 500 miles on it, and I'm pretty happy with it. I went with Holley thinking they have been in the Efi business a while and would have good support. I had an issue with the wrong O2 sensor being shipped with my unit. I bought it through Pace and they were great to get with Holley and handle it right then. But the Holley customer tech line is not so good. I had a fuel pressure issue and after many calls and lots of hold time they determined it was too high and sent me a warranty regulator out at no charge but it was a painfull experience working with there tech support to it resolved. Well over an hour of hold time when you call, vauge support and different answers for the same question based on what tech you get. Email is also an option for them but when I used it I never got a reply back (they say they'll reply within 48 hrs) and ended having to call. They have a forum which has good info. You have to register and get appoved to post (which took over a week) but questions are answered very quickly once you are approved to post. Like I said, overall I am happy, runs great, and issues have been minor but if you are needing support, be prepared..