Well I've tried searching under a couple topics (can't accelerate, no power, etc....) but I am having trouble solving this problem. Basically, my 98 base will not accelerate after 60mph or after 3000rpm in any gear. If I am traveling uphill, the lude has no power. When I continue gassing after 3000rpm in any gear, the car would just get louder and sound/feel like its choking. It also sounds like its sucking in a lot of air but i am not getting any power out of it. I have checked to make sure my intake is on tight. My cat does seem like its busted but it hasnt thrown a code yet. When you hit the cat or accelerate, it will rattle like no tomorrow and it is not from the heat shield. Could this be the cause? or what else can? Any input/help would be greatly appreciated. Thanks.