I just had a 68mm throttle body put on my car and also had my intake bored out. It seems to have to much air and we turned up the fuel but it still seems to be bogging down at low RPM. Plus the idle isn't smooth anymore, it bounces RPM's. I need advice on how to fix it or could the problem be because my intake is off right now?

 

make sure u adjust the idle properly when installing a new throttle body.

 

Reset your ECU after every modification. Use search to learn how-to.

 

have you check for a vacume leak?

 

Thanks- resetting the ECU seem to solve the problem now it's just a little rough but that should go away when I get the intake back on.