Sure, if all you do is drag race... Running an engine wide open for 10 seconds or less isn't nearly as hard as running an engine hard for 20 minutes at a time. White papers and bench testing most certainly do matter, if it didn't then OEs wouldn't spend hundreds of millions of dollars on development research every year. 16w actually does have their products bench tested, I offered to do it for them and they informed me they have all their stuff bench tested at HeadGames Motorworks. They most certainly do have the bench numbers, they just aren't releasing them. As I've outlined in other threads, the JMF mani is a good manifold for drag racing where peak power matters and its short runners and large plenum cater to that. But for cars where midthrottle and overall power curve are more important then something with a smaller plenum and longer runners and flows more evenly definitely is more desirable.
Sorry if that comes off a bit blunt or if I sound like an ass, I don't want this to be a rant but something that not a lot of people realize is that the majority of parts in the aftermarket world are made by fabricators, not engineers. And often times those fabricators miss vital design aspects. Sure they can make a part that fits, but can they make a part that performs as desired is the real question/challenge.
