Another project/ inexpensive/ open EFI system?????

I’ve built one and have it running on my 440 in a ramcharger 4ch batch fire injectors and 4ch wasted spark ls coils. Seems to work good. Built this onto the original 76 engine in the vehicle and was hoping I’d be able to limp it along for a year while I build a separate engine but I’ve been chasing a miss the last week and started hearing some ticking sounds last night. Pretty sure I’m just going to pull it now and do a basic rebuild.