Quote:
Originally Posted by Frank Lee
That's for "wet" manifolds; carb'd or throttle bodied with fuel and air flowing through. Most anything newer is port injected and the manifold runs "dry". Don't know what prevailing theory is on intake smoothness but I'd think the smoother the better.
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Exactly, that is why I said "on carb and Tbi engines".
a great example of this is the ford "Lima" engine (found in rangers)that went from carb all the way to multiport injection, without a ton of non fuel delivery engine changes. These motors are know for best in class mpg in small trucks, and once they went to mpi the intake runners got smoother.