Hey guys i need help from the more experienced here, my buddy johns car is breaking up around 4k rpms and we have no clue why. We switched coil packs suspecting that could be the cause because one of his coil packs was stripped (meaning the two bolts). Nothing happened still does this. We switched the ignition module for shits and giggles same thing happens. As far as we know he is getting the right amount of fuel pressure. but our minds are stumped on this one. Also his uncle changed the spark plugs in it as well, but when the old ones were takin out two were melted..... he doesnt know his spark plug gap, were gonna look soon. im curious as to why spark plugs would melt and does this mean serious damage coulda have happened? im really stumped