Professional Products Crosswind Intake Manifold

CA over 100? thats like everywhere but Napa, Frisco or 30 miles from the beach. Sis went to school in Sac town, F'n Hot in the summer, foggy for the whole week in winter I visited, never got past 50! Thats why I live in So. Cal....;-) I bet your leak is the carb, check the screw in port on the back of the carb, buddy installed his out of the box and that plug was still rolling around in the box.