I have a rochester dualjet 210 2bbl that i took off my 1979 pontiac firebird espirit 305 ci..... i was trying to rebuild it... now im stuck and i dont want to put it together if it aint right... carb shop wants $180.00 to put it back together..... i told them there crazy i can get a new carb for that much.... my question is i want another 2 bbl on it.... should i get a shop to rebuild it or buy a new one?? do they still sell rochester carbs this same model?? i been looking and rochester doesnt have a website.... thanks in advance