Holley Sniper with the Hyperspark distributor is the best deal. Not a simple install on a Mopar, you'll need some tech help with the wiring. Holley has drop in fuel pump modules for a bunch of musclecars, look on their website to see if your car is on the list. If so, then that is the easy way to go. Probably looking at $2000 by the time you buy and install everything. You will get a lot of benefits but not so sure you'll see a financial payback on the investment. Rich at FAST Man EFI is the best resource in the business. If you want to buy a system get in touch with him and have him put together a quote for you.

I added the digital dash to my setup but that adds a bunch more money. I like having all the information on the dash but most people wouldn't want it. https://www.youtube.com/watch?v=64DrLMCLULA

Off topic - Is that red Challenger a '72? might be one of my old rides if it is............

Just as I'm talking about not having issues with the FCC center for awhile now on my FiTech the car petered out on my yesterday and I strongly think it's the efi pump in the FCC AGAIN. Not had one problem with anything else but this high pressure pump. The throttle body has been good but this will be the third pump now if it's bad again. Car had to sit for three days and then finally started after leaving me stranded but still running like crap and smells like it's flooding.

If it's that FCC again I'm cutting my losses and going back to carb with little kicker electric pump to fill bowls. Then I'll put the throttle body for sale cheap. If only I could've gotten a in tank pump for this car.

Seems these Hyper spark systems are getting really good and can act like a vacuum advance under cruising. I'm pretty sure I saw some folks were getting 20-30% better highway economy. For those of us already rocking 5 speeds and 3.50 gears....that would be killer!
I'll be jumping on the EFI bandwagon shortly. Got twins on the way, so gotta mind my bucks for a while until the dust settles. Just bought a new to us 3500 Van, lol.

On that Fitech FCC issue, many people have solved their problems by running a vent line back to the fuel tank. Fitch says it isn't necessary but plenty of users find it helpful.

Also keep in mind that fuel problems are regional and can even affect modern vehicles. My 2013 Mercedes CL65 doesn't like the winter blend fuels on warm days. On warm restarts the fuel can boil in the fuel rail, making the engine stumble for a couple seconds. That's on a high tech turbo V12 with a PWM controlled in tank fuel pump. Luckily, it clears up almost immediately.

Nothing like jumping in a (formerly) $218,000 car and having it die on a restart.

feets, thanks for that suggestion and it's something I've been reading about with a search. So much out there to read on these. I haven't had a lot of time to play with it lately but it looks like the mechanical pump feeding my FCC is working properly with proper pressure. Now I have to see if I have the constant 58 psi FiTech requires. The two gauges on FCC are at flat zero all the time and I don't know if they are bad. I've already had to replace one of them about a year ago. I did get car running again but crappy and sputtering.

The pay back period for a fuel injection set up on a casually driven, classic mopar will be measured in decades. Personally, IMO, some chassis dyno time with a good tuner will get a carb within single digit percentage of an EFI set up. at a fraction of the cost.

Now evaporating fuel is another story If its a big issue, install an electric pump on your carb vehicle so it can fill the fuel bowl in between starts

The only thing I would add is that starting off with the best carb for the combo is the shortest path to success.