Do either one of these flow better than the other, create more power? Or do most just go with the Hyper Pak for the look?

The long runners of the Hyper-Pak intake create a ram tuning effect -- that's why it was developed.

I think the Hyperpak was created for High rpm use. 4500-6000 RPM.

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82 D150-225/727
02 Dakota-3.9/5 speed
87 GMC C7000-8.2 Detroit Diesel/5+2

Or meaby it was a quick response for the need of more power and Ram Air by Pontiac, but if I was you I´ll take some time, job, swep and hands dirty using a Offenhauser manifold with my favourite 4bbl carb and modify my hood to make a "Hyper-Pak" type entry, so I can get the best of two worlds.

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Mopar Muscle is well defend by Slant Six!

Valiant Duster 1971

An Offy will be much more user friendly on a street car.

Can't beat a Hyper-Pak for looks though.

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Official Cookie and Mater Tormentor.

Usually shorter runners are good for high rpm. Hyperpak has quite long ones.

Anyway, it looks good (in a 1960 Valiant engine compartment).

I'm going to Megasquirt (injection) with Clifford "classic" manifold. I think it will be the high rpm construction...

My personel opinion I would go with the hyper-pak intake.
I drive my dart all year round everyday, with a 500 edelbrock and it performs great .
The hyper-pak defenitly is the better choice, even Steve Magnante runs a hyper-pak intake on the street.
http://www.geocities.com/gotnitro2003/R ... r-Pak.html