lil red s-10
New member
Anyone runny a greddy type s bov that can give me sone info on it i have a buddy that is giving me his spair one and it has 2 ports for vacume on it and im a little confuzed i thought there was only supposed to be one. Also i have read up a lil on installing a bov but do i need a vacume sorce infront of the tb blade or behind it?