okay heres the problem, feels like something is blocking the air flow. The car has new sensors, (map sensor came from a junkyard), timing belt, and valves. All have been adjust accordingly. Now when you give it gas it acts like it doesn't really want to go like something is holding it back. It does have a NOS system. Oh, it also has a new distributor. In first gear it only really gets to 20 mph really slowly. It feels as if there is a rope attached to another car and you are try to pull and can't really. Once you get to high RPMs it gets a little more power but not much. Just fixed an intake manifold leak. There is a straight pipe instead of catalytic converter, so the cat isn't stopped up. I am clueless. Can anyone help? If you have questions I will be here all night until I figure something out or get a reply.