Your current hissing booster has a broken control valve. How did it come to be like that?
My 360 has a small cam,and it didn't like the dual diaphragm.
It was something my father had laying around but it had a chunk of metall surrounding the control valve/valverod missing due to shipping handling.. When you say didn't like dual ones, what do you mean? i have street/strip cam comp cams XE274H.
