This is kind of a crazy question. In order for me to switch to a 4 bbl carb , do I have to get a new intake manifold or will it fit on the stock manifold. Currently I have a 2 bbl. I'm have trouble finding a C.A.R.B. intake manifold. I can find C.A.R.B. 4 bbl carb it's made by edlebrock. I even e- mailed edlbrock to see if they made one , haven't got a response . Should I just get the carb and go with a non CARB intake manifold. I would appreciate any response and thanks for everything. I want more horse power!