I pulled the BB cable off and sucked the seafoam from there. I used about half a can. Does it matter if I do it too fast? I did half the can in about 10 seconds. I waited for 15 mins and started it. I ran it for about 10mins. It smoked a fair amount but not too much. Should I just pour the rest in my tank? Or do I need to pour it in and then fill up to mix it? Also do I need to do anything else, like change the oil?