Ok here is my current setup 95 Integra RS: Generic Intake DCSport 4-1 header Thermal cat back AEM Pulleys Crower 403's Skunk2 intake manifold About 2 weeks ago I installed the cams and everything felt great. Nice pull from about 3500-redline. Then I installed the Intake manifold and the car just bogs under 3k and my gas mileage has gone to shit. After you hit about 3k it takes off and screams but below that it's a dog. This is my daily driver and I don't drive at 5k everywhere I go. Any ideas as to why it's running so crapy at the lower RPM's? One other question I had is about a throttle body. I have read a few current post that a 70mm TB would be too big and wouldn't do anything or possiblly bring the performance down. I thought more air was good? I have a 70mm TB and was planning on installing it next but now I am having second thoughts. My long term goal is to run NA and bump the compression up to around 12. Should I install it, wait to put on the TB, or just get rid of it?