Tuck hesiatating

hi what s up guys i nen a lil help when im driving my 92 b2200 on hwy hwen i hit about 60 to 65 mphs it starts hesitating and like it is buckin but only around that speed i checked the fuel filter it was clean think it could be the carb any help would be very appreciated

Do you have a weber 2 barrel?

just the factory carb but i think im going to get a weber if the carb id the problem.