Dad popped a head gasket on my old 22re and drove it home.Now I am going to have to rebuild.I am going to buy a new head and cam and was thinking about a cam upgrade.All of the selections are kind of confusing and everyone has the magic cam that will do it all.My perfect cam has good quiet idle,emmissions legal,same or better gas mileage, some power increase across the board.Can anyone pick me a winner.My truck is a 5 speed xtra cab.I am going to lower gears after rebuild,currently running 31 inch tires.Exhaust is flowmaster from cat back,everything else is mostly stock.Thanks for your help