I went quite over the top with mine as well as put large barbs in so I made an idle bypass pipe so I could bleed air earlier throttle butterflys if I necessary to. not a needed stage but I want idle control. – Dual TPS posture: First or going https://toyota4ageblacktopenginef03793.blogs100.com/31815105/the-smart-trick-of-toyota-4a-ge-that-nobody-is-discussing