damn that is not what i want to hear lol. I've replace everything you have including the icm the only sea foam i have used goes into your gas tank and a little into the oil to break down carbon build up. My car also has a couple of ticking noises but i think that might be a stick lifter or something. What did you use to scan your car to see where the misfires are happening. And also before i got my car whoever had it before my grandfather beat the crap out of it and it barely started and me and my dad brought it back to life when my grandpa gave it to me for my 16th birthday.