My dad and me did a 2.3 to 5.0 carb swap and we took it for its first drive and my car is having problems accelerating. once it hit 25mph it starts jolting,backfiring, and the engine starts idleing down and if you try and floor it past the nonstop jolting the engine trys to die or it will flood the carb. is it the AOD transmission? overdrive? or is it the timing? btw it can rev the **** out of it all day long with no problems. HELP!!!!!!!!!!!