What's the rest of the equation?? "Better" is very subjective.....there are people who have put manifolds back on as they get tired if nagging annoyances, leaky gaskets hitting the ground, higher under hood temperatures; others are not, or have not, been bothered with such issues. On something very mild, might not notice much of a difference.......seeing's how you have both, put the headers on, see how you like therm; later try the manifolds. I know its a lot of work, that's how you learn, AND remember, it is dependent upon the rest of the combination.
