Hate to say it but the distributer caps on these are terrible. Same with the spark plug wires. I went through 2 brand new caps over the last 40,000 miles. Also don't but the cheap spark plug wires. This engine needs a hot spark to run properly or it will mis-fire continuously and randomly. The cheap wire kits run about $40. The goo wire kits run around $80-100 depending where you go. Also make sure the wires stay isolated from each other as much as possible. i.e. you don't want them crossing each other. Poor wires are not insulated well enough. I installed a cheap set once and had to go back a do it over again with a proper set.