hi guys I have a class A RV I would like to tow our chevy k5 p/u on a trailer this summer to the mud runs . My problem is the 454 right now is week and will only do 50 mph on the hiway on the flat. I would like to get it up to 65mph I was thinking of doing a cam change. its a 454 TBI I was also thinking od gutting the cat and adding a flow master . any good ideas for a cam?