ive had an engine out of an explorer for over a year and finally got motivated to do a build. i got the block freshened up and the heads too. they are the gt40p heads and i was thinking about a port job and bigger cam. any recommendations and numbers you've seen? i was planning on the port, cam, 24lbs injectors, throttle body, MAF, upper and lower intake. im planning on buying a roller to throw it in and i want something to beat on at the track and on weekends. I just want opinions and recommendations on what you think.