The other day i dropped a 91 integra with b18 engine swap off to the mechanic to check on certification. Anyway, when i went to get it the battery was basically dead trying to start it, so after a boost i took off and decided to drive fairly fast (hit vtec and whatnot), but then i started to drive normally again and the car began to lurch and almost stall and i saw the rpm's drop. So it did this when i tried to accelerate but then the problem stopped all of a sudden. (By the way this all happened within 3 min after getting the car boosted). So what im wondering is that this happened because the battery wasnt really charged up enough to be flooring it yet? or because of some other problem like the spark plugs igniting or having to warm this type of engine up first... So any suggestions would be helpful, thanks.