Dragn-racing

Ok ill do my best to not leave anything out. I bought a 81 cb900c last year. Ran ok but needed some tlc. I decided to build a cafe style from it..since it already has a few mods like pod filters and drag bars.. now i have built some drag pipes2 1/2" .. an other cosmetic things. Now i had noticed it ran very lean. So this year i rejeted to 120s and 72 main and secondary. . and cleaned the carbs. Pilots are stock.. the accelerator pump had already been disconnected. .turned air screws out to 2 1/2 turnes.. it started right up. Idles like a champ. And low speed is great but roll on the throttle more than half..and it just gurgles and stays flat..just bogs till i let off tge throttle and then runs fine again.. what could i have done or missed??