twin 54's

Im running a 2.0l abf with a kr head with cams and the bottom end has had a little attention, it has twin 45's, the problem i have is about 2000 rpm its flat and seems to miss fire nearly to a point of undriveable…..im wondering is anyone else running the same ?? If so what jets are you using….come the summer its goin to a specialist but in the meantime i want to do as much as i can myself

Sorry i got my numbers mixed up in the subject !!! They are twin 45's not twin 54's !!! Im just after a list of jets if anyone is running them

I take it no one is running twin 45's !! 😭😭