Starts like ass, sputters and runs rich

[Febo]

Well filter is probably more likely than your injectors as it would of caught it all first I guess. But FPR.... eh... I wouldnt think you would have these issues. It sounds like a lack of fuel or spark versus running pig rich. Just IMO. Im just thinking with it sitting for a year or so, unless you drained the tank before it sat the gas easily varnished and you may have just broke all that up with your mix of good gas, sea foam, and ISO Heat.