excellent, but the intake manifold side runners are thick metal so its a breeze to tap it right? im gonna pull the intake off so ill be sure to clean it all up and deburr as well as get out all the shavings. i was just afraid the metal wasnt that thick and id have issues with tapping it, id hate to drill the hole and then have a horrible time with it stripping out on me cuz it wouldnt have enough threads to get a good hold on the fogger nozzles.