Yeah, gain... couldn't remember. For IFR, I can't remember exactly how I got mine. I read so much trying to figure out the best values to use. But since there are no exact numbers to be found for these injectors, you basically multiply your IFR table the percentage that the 60's are larger than what u have. Then you can tweak the MAF table from there. I really don't think it has to be perfect. Don't worry about the other injector tables unless you know how to calculate those. If going from 33 to 63, is basically 48% bigger. So maybe start by multiplying by 1.48xx. If your skew is 1.30 or 1.28 or whatever and you only changed the IFR and your wideband shows terribly rich or lean, then I would multiply your IFR by 5% until it looks closer to stoich, then start tuning MAF.
That's just my way, not saying it's the best. Everyone has their own way on this platform, but I will link you to a really good guide for tuning real quick. I can now take a gnarly tune and get it real close with just a few edits, with this guide.
