Both are probably about the same, but in my opinion, I would get the roller cam. It will add stability to the valvetrain, allow the engine to rev faster, prolong oil life, and reduce friction (heat) in the head. All of which are good things. I have been told from a few people that the Ranger header does not actually flow as well as some think it does. Look inside the header at the head end. The depressions in the pipes so there is bolt clearance create a lot of restriction. And at the bottom end of the header where all the pipes join is fairly restrictive as well.
__________________ 1986 Mercury Capri 2.3L
1994 Ford Escort 1.9L
1999 Ford Escort 2.0L |