[Bobcat]

Grubby .... rather than going bigger on the squirters and changing cams , look at the location of the primary butterfies on the transition slot . You should have .020" or less showing . If you are too far into the transition slot , you can get an off idle stumble . Another real simple "cure " to try ... richen up the mixture adjust screws about 1/4 to 1/2 turn ( out ) from where you get best idle .
Once you are sure you aren`t too far into the transition slots and going richer on the mixture screws doesn`t help , then look at changing cams/squirters . I`m at 31 on my squirters and no stumble at all on a big block 482 . Transition slot can barely be seen . Believe it or not , sometimes it is the simple things that work .

Bob