Both Holley and FAST can do most if not all of that. Not sure about the Flex Fuel and I'm too lazy to look it up. Using boost control on my current car. Adding a transbrake if the USPS would ever get their sh!t together and deliver it. Then I can use the boost building function.
Installed two of these including converting the first one's ignition to CNP. Never went to a tuner and both cars ran great.
No hacking required. I used an adapter harness that I mated to the Holley EFI system. It plugs into the existing 60 pin EEC-IV harness. The Holley system can be removed and an EEC-IV can easily put back in should I ever want to. Both Holley and FAST offer harnesses of all shapes and sizes should you want to start fresh.
Still got all my hair.
I guess it depends on what your definition of "no where near" is but I think I'm at least close to where I would be vs Pro-M.
Still haven't been to a tuner. Don't plan on it. Haven't needed to.
All that being said, I do believe that a Mass Air system is better than Speed Density. From what I've seen, the Pro-M is a great system.
sounds like you took the time to learn the ins and outs of your system, therefore learned to trust it. which is important.
my preference is the pro m. the parts are quality, the harness is made by ron francis, using ford connectors, and the install directions and set up has been made very simple.
the reason i always say ive never been to a tuner (just hp output) to tune my car is that every person ive seen or talked to who has a holley, fitech, msd etc or any other system except the pro m has had to go to the local tuners. therefore spending additional $$$ and time to get the most out of their system and in turn, costing about the same.
i cant speak for out of state tuner cost but here its a min of $500...
change intake...$500
change heads....$500
change exhaust....$500
so you can see for me, who isn't a tuner, and i really have no desire to learn about it, this is where the pro m shines.
if i wanted to take the time to learn what every aspect of a fuel or spark table has and have the car down, trying to tune making tweaks here and there i probably would've got something else.
i haven't touched the fuel/spark tables for any engine combination, supercharged or not, since i got the system. i was feel adventurous so i added another degree of timing in the presence of e85 though lol