No one has given you crap about running a 14.5.
Now read this carefully
All we are saying is that with your current setup you'll get low 14's not mid 13's say 13.7 that you keep spouting on about.
If you change your tyres to stickier ones ,change the suspension for traction etc etc just to prove us all wrong then you have changed your current setup...geddit?
We are all here to help you but you seem to know better and or won't listen.