Alright I have a ls/vtec with pr3 head. It has a noticeable tick which i first thought was the injectors but I asked the guy I bought the car from and he said it has crower valve springs and retainers and thats y it is ticking. He said I need to run bigger cams like skunk2 stage 2. For it to run better. Is this true? Or should I check the valve lash?