Im finishing up my interior soon and want to start on some power next. I currently have the stock 5.0 in my 89GT and wanting some opinions on whether to build the 5.0 or get a 351w for it. its going to be a street strip car and would like to put down 450+ to the wheels without power adders. I would also be redoing the entire engine either way. I want the engine to last and not have to redo it in the future or break it. Im not an engine expert so will be using a manual to help me. i do want a roller cam have read up a bit on them and they seem to make the most power. thanks for your help