Have a fuel/air question but info first. 6th Gen with 6k miles and switched exhaust to Delkavic 9" open cans. Plugs new n switched to E3.38. Now, the issue.....boggs down while holding any speed, smell of fuel out exhaust and sometimes a low idle of 900. Air filter is also a K&N new n clean. There is also a small but noticable ticking. What is the issue with this thing lol?