Quote:
Originally Posted by undy
Also, the air coming in from the top and the air coming in from the sides collides and creates turbulence, impeding flow. I've heard the reports of HP loss many times before.
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The real problem with the "internet reports" is that they are coming from guys, the majority of whom, really have no idea how to do anything other than just change the air cleaner. Without changing the vac spring, my switch to the X-treme filter had the effect of pulling my four barrel carb off and replacing it with a two barrel. My secondaries
would not open with the same spring that had opened them (a little bit) just going to the grocery store.
(That's really no exaggeration.) Of course, replacing the vac spring, with a correct one, made all the difference and the overall improvement, at both low speeds and high speeds, was significant. The increase in air flow from my original S&H air cleaner was really quite noticeable.