91 b2200 NEED HELP

it has a newer weber on it just got the truck but sometimes it wants to spit and spudder when really get on the gas let it set a while sometimes it quits sometimes it keeps doing it. it is a bagged truck so it has a fuel cell in the bed and a manual pump looks new gas filter stays full some times its like the filter is getiin air in it in spurts but is always about full

does it seem like a 2 stroke with a fouled plug? mine did that and i have to clean my pluggs alot. due to burnin alot of oil, they foul. idk if air in the filter would do this. i no theres normaly a little bubble in the filter. also check and make sure ur fuel line isnt pinched against anything sinse u moved the tank. good luck

no it dont burn or use any oil 2 day i drove it all day and it didnt do it at all idk thx for the help