Several issues ago, there was an article about swapping a '99 + up 4.0 intake manifold on an earlier 4.0 (mine is a '94). Does anyone know what parts or modifications are necessary to do this swap? I am also looking for a performance camshaft info. including swapping info. (lifters, etc.), also larger injector suppliers... I'm dropping in a rebuilt Advance Auto 4.0 "heavy duty" and am trying to squeak out as much performance as possible, all while the motor is on the stand. I am already using a Pacesetter header, "high-flow" cat, "old school" cherry bomb and a home-made cold-air intake. Any info would be greatly appreciated. Maybe someone has the issues that contains the info., that way I could order the back-issues.