Quote:
Originally Posted by ray humbel
I have the Shelby aluminum 427 with a single Holly and have plenty of air with the K&N filter & K&N top filter. If I change it to the stock style Stellings the engine is severly air starved. I think it is the top K&N filter that makes the most difference. They are expensive but what do you want, performance or looks? When the hood is down you can not see either. Change them back when you take it to a show.
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I have a vintage 427 SO setup with a 1x4 Holley (3255-1) too. I've been thinking of doing the same and seeing what add'l HP it brings. You are talking about the K&N extreme air filter, right? I'd have to use a drop base adaptor to get it to clear.
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