fireing order is as follows. each cylinder to fire will be located four banks clockwise from,and 1 row in front of, the cylinder which has just fired. if the cylinder which has just fired is in the front row the next cylinder to fire will be in the rear row. a1 b5 c2 d6 a3 b7 c4 d1 a5 b2 c6 d3 a5 b2 c6 d3 a7 b4 c1 d5 a2 b6 c3 d7 a4 b1 c5 d2 a6 b3 c7 d4. 4 mags or 7 mags depends on dash. # 3was answered already. duration is 276