Alright people I'm a little lost. I have an 03 predator 500 just put a wiseco 12.5:1 compression piston and aftermarket air filter setup with air box removed (just a tube with cone filter) has hmf slip on and180 main jet. Now before I did the piston and filter it ran great but now it has less power than before, a very loud tick ( valves are not hitting timing is right) And has bad lag when I punch it. also before the piston and filter had 170 jet I bumped it to 180 after and it improved some but still not right. Any help is appreciated!