I have a 97 ss convt. auto, just bought the lt4 hot cam kit with 1.6 rockers, jet hot long tubes with emmisions and y-pipe under pulleys 160 stat air foil,what problems am I going to have if any, what tune should I use,what rear hp am I looking at thanks

 

FYI, long tube headers are not smog legal as they relocate the cat(s) in case you need to pass smog.

I highly recommend you replace your stock valve springs as you're going to have coil bind due to the higher lift.

 

With a good tune you should see ~330 or so at the wheels

 

Problems? You tires will wear out faster

 

Return the air foil.