Help! After finally getting the fuel deal to work a little better I'm having a 10-4-4 boost pattern that is just killing me. The car feels like it has 5000lbs dragging behind it. No pull at all like it normally does. In fact, even when it is showing some boost it doesnt feel like it. Could it be a loose vaccuum hose or possibly a bad gasket in the intake line? Thanks for any help.
-Chris

 

It could be many things. First start off by checking your lower and upper ic hoses for any cracks or splits. Most likely this is your problem. Next remove your Y-pipe and do the same thing. If you still have the problem you will most likely need to get a tie-wrap.

 

I'll check that tonight, thanks for the input. Anyone else having this prob or had it before? I can hear a lot of noise from the air pump too. Louder than it used to be. One time right before this all happened I bottomed the car out hard in a pot-hole. Maybe I broke something loose somewhere. thanks guys,
-Chris

 

check for dents /damage on the cat a hard blow to the cat can break the internal "bed" that holds the actual catalytic material loose and cause it to clog the outlet. ie INSTANT clooged cat.