There are different rom editors on PGMFI for crome/uberdata, try opening it in each and see if they start to make sense. You're still going to need to change the fuel and ignition tables when you raise vtec xover, otherwise you're going to be rich from 4100-vtec xover. You'd probably be able to feel the difference once you hit 4100.
__________________
2015 Ford Mustang GT Fastback - Ingot Silver - 6M - Performance Package - Gibson Catback, JLT CAI, FR 47lb injectors, BAMA E85 tune, Eibach Sportline, BMR wheel hop kit, UPR oil separator, Steeda shifter bushing/bracket
Team B.O.B.® - Ballaz on a Budget