I should agree With all the others, the ITB's must operate just like a scalded ape. In particular down lower or everywhere in between. If they are not, then I'd also Test fuel stress, and make sure the throttle linkage is opening all four equally and evenly (synchronized). I have https://4age20vforsale28256.snack-blog.com/32454330/the-definitive-guide-to-4age-20v-for-sale