whoever told you that you cant run whatever lobe sep or lift or whatever cam you want just can't tune worth a crap.

the challenge is with EFI you have a CONTROL LOOP. this could be fuel or idle target or whatever. it could be an open loop (you say 'we are doing this' and keep saying it) or a closed loop (you say 'we are doing this' and a sensor says 'we actually did this' and then you say 'ok lets try this instead')

so you need to adjust your control loop to MINIMIZE MODULATION

i have tuned everything from RV peanut cams with an incredibly smooth output, to insane cams which defy all logic and seem only be to show off. none of them have left my care running worse than a carb would.

yes the extreme cams require disabling an IAC sometimes or timing idle compensation sometimes.

sometimes a guy with a peanut cam wants it to idle like a crazy cam too. i have no problem doing that either.