Anyone running Roe 14# pulley

[vegasviper]

With stock heads

 

[orlandov10]

no point going above 10 on stock heads, even 10 is pushing it... you will see more boost but it wont dyno higher, it will create more heat and hurt you #'s

 

[Simms]

I would think boost creep would be an issue as well as needing to upgrade the fuel system.