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Discussion Starter · #1 ·
hey guys,

I was thinking about swapping my standard hood for a shaker or formula hood. I like both aesthetically about the same, so its a matter of function for me. if I were to get one of either that actually functioned (not just a cosmetic scoop), which would take in more air?

I'm not building this car for anything too serious, just want to have a fun, fast car to drive. does it make a difference at all as far as intake goes? I'm thinking that a formula hood would be more direct, and it also has two scoops, not one, but I'm speculating that there might be a sort-of cowl-induction effect for the shaker as well..

not too big a deal, just at the idea stage right now. don't need any specific numbers, just want to know what you think would be better at pushing more air through the carburetor.

thanks,
 

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'70 Esprit TA clone Pontiac 400
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On the late 2nd gens the stock cool air intake from the radiator core support will work better for performance than the Formula or Shaker opened up.
 

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If you have the entire shaker kit with hood gasket and cut open the vents that's pure cool air and if you run a q jet it sounds awesome when you step on it

I don't recall the formula hood being functional like earlier ones but could be wrong
 

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Even if you could open up and make a functional formula hood for your car, it would be a nightmare in mods. Go with the shaker setup.
 

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In my case I am glad my car has a shaker. The room up under the scoop I am using for the fuel injection set up I have, which I would not be able to close my hood if not for the shaker. Also, the scoop is just fun to watch when you drive around with it rocking when I shift, and the scoop door opening when you nail it. As far as the ram air effect, I don't know which is better, but I'd guess any performance gains come from the engine getting "cold air" for the most part. So weather you get the cold air from a shaker, Formula hood intakes, or a single duct pipe grabbing air from behind a headlight, they all feed the engine cold air. That pretty much leaves the visual part as the deciding factor in the end.
 
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