Dyno Testing Dual Plane Intake Manifolds: Made in the USA vs Cheap Import Knockoffs – How Do They Compare?


Dyno Testing Dual Plane Intake Manifolds: Made in the USA vs Cheap Import Knockoffs – How Do They Compare?

We’re all about made in the USA parts when they make sense, but I’m very well known for saying that crap is crap, regardless of where it comes from. The point being that you should buy the best parts you can afford, regardless of where they come from. There are a lot of great performance parts being manufactured all over the world. But if you are here in the U.S. and wanting to know how your American Made intake manifold stacks up against some import models, check out this dyno testing video where a few intakes are being bolted onto a small block Chevrolet to see which one comes out on top. Will the cheap import keep up with the Made in the USA model?

Let’s watch and see how this mild small block build responds.

Video Description:

In this video we dyno test carbureted dual plane intake manifolds. We compare USA made to a foreign made cheap knock-off.

Blue Collar Dyno Mule engine specifics:

Stock bottom end small block Chevy.

9 to 1 compression

Stock Vortec cylinder heads. NO porting.

Hydraulic flat tappet camshaft.

235 / 237 duration @ 0.050 0.489 / 0.489 lift 112 LSA installed 4 degrees advanced.

Stock stamp steel rocker arms

750 “double pump” carburetor

1-5/8 primary 3” collector full length dyno headers.


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