valve job is deffinately worth it. i dont know if the valves are back cut or not but thats another thing to ask. also iirc you can put 3l valves in. someone chime in but i would recommend going all out on the heads since they are off. dont overlook and think about doing something that "might" help. just do it. demon svt posted a how to on porting heads maybe you can check that out too. bowl porting has shown great benifits with flow too but unfortunately i havent seen how the svt head is made up close.
