hey i have a 91 civic si with a b16a swap and i have developed a miss and it seems be getting worse, also i have noticed that about 100 miles after putting new platinum 4 spark plugs it the were almost fouled already, another thing is my tach will jump like 2-3k rpms and then at high rpms it will ever go past 5.5k and it will jump to like 7k every other second but my engine still is revving im so confused, i replaced the coil, cap, rotor, control module, and wires still gettin worse HELP! PLEASE - Zach