would a bad accelerator pump cause backfireing through the carb though? i thought it just caused more of a dead spot...my pump is going or is not setup but when i accelerate anything other that slow it has a dead spot..it doesnt die but it feels like it will..then it catches and keeps going...but i dont have any backfiring issues. although i am running a hydrogen/pcv system so that might be whats keeping it from the lean pop.
