I'm putting a 5.0 from a 99 explorer in my 69 mustang. I want to upgrade the engine. What cam would you guys recommend? I read about the E303 and TFS 1 is anyone running either of these? I'm looking for that cool idle sound. I know the valve springs will need an upgrade any other suggestions? Would it make any sense to change to 1.6 rockers without changing the cam? By the way I'm taking the fuel injection off and will be running a carb. I have the gt40P heads so headers will be a problem but I will probably end up with Macs. Any other suggestions would be appreciated.