power valve question

i have a dual plane and yes squirter is adding fuel as soon as throttle is touched. i was at the track this weekend and went from a 670 avenger to a 750 demon dbl pump. i'm not sure if i'm going to stick with the demon due to the fact i have to many issues with it. but of course i ran a little quicker so it got my interest. it was terrible when i first put it on but i went up in squirters front and back and now it's good if i'm on my stall but if i try mashing the throttle under 2,000rpm it still bogs something fierce. it also hesitates down the highway if i'm cruising at 3,000rpm and mash it, this is where i wanted to be sure i wasn't confuseing the accelerator pump with a pv problem.